JP2008241762A - Playing assisting electronic musical instrument and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a playing assisting electronic musical instrument that enables a user to play music without practicing for a long time and also with correct beats, and to practice beats. <P>SOLUTION: The playing assisting electronic musical instrument displays a musical score picture on a touch panel display and decides whether touch timing information indicative of the time when a touch by a player is detected is within a range that touch schedule time range information formed based upon predetermined touch schedule time information and a range of a predetermined allowable error indicates to instruct a musical score information control unit to continue to play based upon the touch timing when the touch schedule information range information is within the range and in timing of a minimum value or maximum value of the touch schedule time range information when not. Consequently, the playing assisting electronic musical instrument enables the user to play music without practicing for a long time and with correct beats, and also enables the user to practice beats. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a performance-supporting electronic musical instrument that supports the performance of a performer, and in particular, a beginner can perform music without a long practice and can easily perform with the correct time signature even if the performer has difficulty in obtaining the correct time signature. The present invention relates to a performance-supporting electronic musical instrument that enables beginners to practice time signatures.

  Although there is a demand for middle-aged and older people to enjoy playing musical instruments, playing the musical instruments required considerable years of practice in order to improve their playing proficiency. 2. Description of the Related Art In recent years, electronic musical instruments such as keyboard musical instruments have been known in which a performance method is simplified and a keyboard to be pressed next is illuminated so that anyone can easily perform a performance operation. However, many beginner middle-aged and old players often fail to improve their performance in a simple music performance device such as an electronic musical instrument because the time signature in performance is not good.

  Electronic musical instruments that automatically perform accompaniment, etc., and the performer performs with the keyboard, etc. are well known, but the performer is forced to match the time signature of the automatic performance. If this happens, it tends to be difficult to correct.

  A technique is known that corrects the timing of music performance information while leaving natural variations and habits in the performance timing of automatic performance (for example, Patent Document 1).

In addition, a method for estimating the time signature for music whose time signature changes in the middle of the music is known (for example, Patent Document 2).
JP-A-6-230774 (first page, FIG. 1 etc.) JP 2004-56471 A (first page, FIG. 1 etc.)

  With the well-known keyboard instruments that guide the keyboard by illuminating the keyboard, many beginner middle-aged and older players are unable to get the time signature and perform quickly without being able to follow the guidance quickly. However, there are many cases where the performance is not improved and frustrated.

  With well-known electronic musical instruments that automatically perform accompaniment, etc., and the performer performs the melody on the keyboard etc., the performer is forced to synchronize with the time signature of the automatic performance. I can't do that. Also, if the time signature shifts little by little, the shift accumulates and the accompaniment tends to be lost.

  The prior art in Patent Document 1 is an automatic performance, and the performer does not add his / her expression. Moreover, the prior art in the above-mentioned patent document 2 detects a minute change in time signature in a song, and is too advanced and practical for beginners.

  In the present invention, when a performer plays an electronic musical instrument, by automatically correcting a certain range of performance time lag, particularly a middle-aged player can enjoy playing without frustrating performance practice in the middle, and It is an object to provide an electronic musical instrument that enables time signature practice.

In order to solve the above problems, the performance support electronic musical instrument of the present invention employs the following means and procedures.
(1) The present invention provides a musical score information storage section storing musical score information that is information relating to musical notes on a musical score, and musical score information including rest information that is information relating to rests on a musical score, and the musical score information. And generating and outputting music performance information including at least pitch information and volume information, and generating and outputting display score information including at least note information and rest information using the score information. A score information control unit, a display control unit that generates and outputs score screen information based on the score information for display, a score display unit that displays a score screen based on the score screen information, and a player's touch is detected Touch detection unit, and touch timing information indicating the touch time detected by the touch detection unit is formed by predetermined touch scheduled time information and a predetermined allowable error range. If it is within the range, the musical score information control unit is instructed to continue performance based on the touch timing, and if not within the range, the minimum value of the scheduled touch time range information is determined. Alternatively, the time signature determination unit that instructs the musical score information control unit to continue performance at the timing of the maximum value, and the music performance information or the performance continuation instruction is received from the musical score information control unit, and the music performance information or performance continuation is received. A performance supporting electronic musical instrument comprising a musical sound generating unit that generates musical sounds based on instructions.

With this configuration, if the beat is too shifted, the performer can recognize the shift based on the difference between his / her touch and the sounding timing, and can attempt to correct it. When the time lag is small, the player's touch (instruction) timing is applied, and the player's performance expression is utilized.
(2) The present invention provides a musical score information storage unit for storing musical note information on musical notes and rests on a musical score, musical score information including rest information, and music comprising at least pitch information and volume information based on the musical score information. Performance information is generated and output, and based on the score information, a score information control unit that generates and outputs score information for display composed of at least note information and rest information; and score screen information based on the score information for display Generating and outputting a display control unit, a touch panel display for displaying a score screen based on the score screen information and detecting a player's touch, and touch coordinate information indicating a position where the player touches the touch panel display. An area on the touch panel display that is a coordinate detection unit that generates and outputs, and information that is included in the score screen information and that can detect a player's touch Receiving the pressed area coordinate information from the display control unit, comparing the touch coordinate information and the pressed area coordinate information, determining whether the touch coordinate information is within the area indicated by the pressed area coordinate information; A coordinate comparison unit that outputs time signature determination instruction information that determines that the next note or rest has been touched and instructs time signature determination, and a time at which the player's touch is detected based on the time signature instruction information. It is determined whether or not the touch timing information to be expressed is within a range indicated by the predetermined touch scheduled time information and a predetermined touch error time range information formed by a predetermined allowable error range. Based on this, the musical score information control unit is instructed to continue performance. And a beat determination unit for instructing performance continued to the score information control unit in grayed, a performance support electronic musical instrument to generate the musical tone in the tone generator based on the musical performance information.

With this configuration, if the beat is too shifted, the performer can recognize the shift based on the difference between his / her touch and the sounding timing, and can attempt to correct it. When the time lag is small, the player's touch timing is applied, so that the player's performance expression is utilized.
(3) The rest information of the musical score information is musical score information that has been changed or changed so that at least the value of the note value information indicating the length thereof is included in the note value information of the previous note. May be. Such a change may be made in advance in the musical score information, or may be changed when generating the musical score display information.

With this configuration, it is possible to deal with various musical score displays.
(4) The pressing area coordinate information may be information representing coordinates of an area surrounding a part or the whole of a displayed note, rest, or both on the touch panel display.

With this configuration, performance support corresponding to the degree of agility of the hand of the performer is possible.
(5) When the touch timing information is too small and falls outside the range of the scheduled touch time range information, the time signature determination unit performs the performance on the score information control unit at the timing of the minimum value of the planned touch time range information. If the touch timing information is excessive and out of the range of the scheduled touch time range information, the musical score information control unit is instructed to continue playing at the timing of the maximum value of the planned touch time range information. May be performed.

With such a configuration, the performer can recognize the deviation of his / her time signature according to the direction of the deviation of his / her touch and the sound generation timing, and can try to correct it.
(6) The scheduled touch time information may be calculated based on a player's past time signature, and the scheduled touch time range information may be information indicating a region sandwiching the scheduled touch time within a predetermined allowable error range. .

With this configuration, the performer can freely change the time signature by slightly changing his time signature. On the other hand, if the time signature is changed drastically, a difference between the touch timing and the sounding timing of the player will occur, giving a warning to the performer. On the other hand, since the audience cannot determine whether the discrepancy is the intention of the performer or a performance error, the performance can be continued without any problem.
(7) The scheduled touch time information is calculated based on the number of beats set in the performance support electronic musical instrument, and the scheduled touch time range information is information indicating a region sandwiching the scheduled touch time within a predetermined allowable error range. There may be.

With this configuration, it is possible to practice according to the target time signature.
(8) The time signature determination unit includes first scheduled touch time range information indicating a region sandwiched by a predetermined allowable error range with a first scheduled touch time calculated based on a player's past time signature, and a performance. If there is a range overlapping the second scheduled touch time calculated based on the number of beats set in the support electronic musical instrument with the second scheduled touch time range information indicating a region sandwiched by a predetermined allowable error range, there is an overlap. The touch timing information indicating the time when the player's touch is detected is within the range indicated by the third scheduled touch time range information based on the time signature determination instruction information. If it is within the range, the musical score information control unit is instructed to continue the performance based on the touch timing. At the timing of minimum or maximum may be carried out instructions of the performance continued to the score information control unit.

  With such a configuration, it is possible to practice performance in which the time signature is naturally changed within the range of the expression intention of the performer without greatly deviating from the preset target time signature.

  According to the performance supporting electronic musical instrument of the present invention, by automatically correcting a certain range of time signature deviations, particularly middle-aged and older players can enjoy playing without frustration in the performance practice, and time signature practice is possible. A performance support electronic musical instrument can be realized.

An embodiment of a performance support electronic musical instrument of the present invention will be described with reference to the drawings. In addition, when the component which attached | subjected the same code | symbol performed in embodiment performs the same operation | movement, description may be abbreviate | omitted again.
(Embodiment 1)

  An example of the configuration of the performance support electronic musical instrument of the present invention is shown in FIGS. FIG. 1 is an external view of a musical instrument operation unit 10 for performing a performance operation of a performance support electronic musical instrument of the present invention. The song title area 2 displays the song title of the song. When the knob 1 is rotated, the song can be selected. In the time signature area 4, the value of the time signature is displayed. Although the time value is described as a numerical value used as a so-called metronome symbol, it is not limited to this. When knob 3 is turned, the value of the time signature changes, and the value of the time signature can be selected. The start button 5 is a switch for starting music performance. When the start button 5 is pressed, the performance of the music selected by the knob 1 is started at the time specified by the knob 3. The display unit 11 is a display device such as a liquid crystal display device capable of displaying an image, and displays not only a score but also various information. The song title area 2 and the time signature area 4 are provided in the lower left part of the display unit 11, and the song title and the value of the time signature are displayed by liquid crystal. Note that the music may be started by touching the first note displayed on the score described below.

  Among the display screens of the display unit 11, the display area 12 is an area for displaying a musical score. In the display area 12, the musical score is displayed in six bars. The number of bars other than six bars may be used.

  Of the display screen of the display unit 11, the display area 14 and the display area 15 have not only image display but also a touch panel display function capable of detecting touch. The display area 14 and the display area 15 have a function of displaying a measure being played and the next measure, and a function of detecting a player's touch. The display area 14 displays a measure being played, and the display area 15 displays a measure next to the measure being played. The display area 13 displays a metronome pendulum image and a baton image, and the pendulum image and the baton image move left and right in time with the beat.

  Of the six bars in the display area 12, the bar being played may be enclosed by a dotted line as shown by the dotted line 16, or may be colored to indicate that the bar is being played. .

  FIG. 2 is a block diagram showing the configuration of the performance support electronic musical instrument of the present invention. The performance support electronic musical instrument includes a musical score information storage unit 20, a musical score information control unit 21, a music piece instruction unit 22, a time signature instruction unit 23, a start operation unit 24, a musical sound generation unit 25, a display control unit 30, a touch panel display 31, and coordinate detection. A unit 32, a coordinate comparison unit 33, and a time signature determination unit 34.

  In FIG. 2, the score information storage unit 20 stores score information including note information that is information about notes on the score and rest information that is information about rests on the score. The musical score information storage unit 20 is preferably a non-volatile recording medium such as a hard disk or a ROM, but can also be realized by a volatile recording medium such as a RAM.

  The musical score information control unit 21 acquires musical score information of a desired music piece from the musical score information storage unit 20, generates music performance information including at least pitch information and volume information based on the acquired musical score information, and generates a musical sound generating unit 25. And, based on the musical score information, display musical score display information including at least note information and rest information is generated and output to the display control unit 30. Specific contents of the score information, the music performance information, and the score display information will be described later. The musical score information control unit 21 can usually be realized by an MPU, a memory, or the like. The processing procedure of the musical score information control unit 21 is usually realized by software, and the software is recorded on a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  The display control unit 30 generates score screen information based on the score information for display supplied from the score information control unit 21 and outputs the score screen information to the touch panel display 31. The score screen information is two-dimensional digital data corresponding to the image on the touch panel display 31. Further, the display control unit 30 generates pressed area coordinate information, which is information indicating an area of notes to be played, an area to be pressed with a finger, and the like based on the score display information, and outputs the generated information to the coordinate comparison unit 33. The display control unit 30 can be usually realized by an MPU, a memory, or the like. The processing procedure of the display control unit 30 is usually realized by software, and the software is recorded on a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  The touch panel display 31 displays a score screen based on the score screen information supplied from the display control unit 30, detects the player's touch, and supplies the detected signal to the coordinate detection unit 32.

  The coordinate detection unit 32 generates touch coordinate information indicating the position touched on the touch panel display 31 by the performer and outputs the generated touch coordinate information to the coordinate comparison unit 33. The touch coordinate information can be expressed by the coordinate position (X, Y) on the touch panel display 31, but other coordinate expressions may be used. The coordinate detection unit 32 can be usually realized by an MPU, a memory, or the like. The processing procedure of the coordinate detection unit 32 is usually realized by software, and the software is recorded in a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  The coordinate comparison unit 33 compares the touch coordinate information and the pressed area coordinate information to determine whether the touch coordinate information is within the range indicated by the pressed area coordinate information. When it is determined whether or not the touch coordinate information is within the range indicated by the pressed area coordinate information, it is determined that the next note or rest has been touched, and time signature determination instruction information for instructing the time signature is output. The pressed area coordinate information is coordinate information indicating an area where a player's touch can be detected. The coordinate comparison unit 33 can be usually realized by an MPU, a memory, or the like. The processing procedure of the coordinate comparison unit 33 is usually realized by software, and the software is recorded in a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  The time signature determination unit 34 receives the time signature determination instruction information from the coordinate comparison unit 33, and based on the time signature determination instruction information, the touch timing information indicating the time when the player's touch is detected includes predetermined touch scheduled time information and predetermined time information. It is determined whether or not it is within the range indicated by the scheduled touch time range information formed by the allowable error range, and if it is within the range, stepping instruction information is output to the score information control unit 21 based on the touch timing. A performance continuation instruction is given, and if it is out of range, step instruction information is output to the score information control unit at the timing of the minimum value or the maximum value of the scheduled touch time range information to instruct the performance continuation.

  The musical tone generator 25 generates a musical tone signal to the musical tone generator based on the music performance information and the instruction to continue the performance from the musical score information controller 21. The musical sound signal is heard as music by performers and audiences through speakers, headphones, and the like. The step instruction information is information for instructing the score information control unit 21 to generate a musical tone of a note newly touched by the performer, and has a function of continuing the performance at a new stage of the note in the score. Instruction information. The generation timing of the step instruction information also has a function of determining the time signature for the note. The tone generator 25 can be realized by a speaker and its driver software. The musical sound generator 25 may be considered to be only the software-only part that generates musical sounds.

  Here, the touch timing information may be time information from the start of the performance of the tune, but usually the time information from the previous performance operation, that is, the time from touch, which is counted by a time coefficient device such as a timer. Can be expressed as Since the determination process whether the touch coordinate information is within the range indicated by the pressed area coordinate information and the generation process and output process of the time determination instruction information can be performed in a short time, the time when the time determination instruction information is output is It can be made practically coincident with the time of touch timing.

  The music piece instruction unit 22 supplies the music piece name information corresponding to the music piece name selected by the rotation of the knob 1 to the musical score information control unit 21. The music piece instruction unit 22 can be usually realized by an MPU, a memory, or the like. The processing procedure of the music piece instruction unit 22 is usually realized by software, and the software is recorded in a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  The time signature instruction unit 23 supplies the score information control unit 21 with time signature information corresponding to the value of the time signature selected by the rotation of the knob 3. The time signature instruction unit 23 can be usually realized by an MPU, a memory, or the like. The processing procedure of the time signature instruction unit 23 is usually realized by software, and the software is recorded on a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  The start operation unit 24 supplies a pulse signal or digital information indicating the start of performance to the score information control unit 21 when the start button 5 is pressed. The start operation unit 24 can be usually realized by an MPU, a memory, or the like. The processing procedure of the start operation unit 24 is usually realized by software, and the software is recorded on a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  Next, the contents of score information, score display information, and music performance information will be described. The score information stored in the score information storage unit 20 is composed of score display information and music performance information. The score display information is information centered on notes such as quarter notes and eighth notes, rests, bar lines, and the like described in the score. The note information consists of note value information representing the length of the sound and pitch information representing the pitch of the sound. The rest information is composed of note value information representing the length of the rest. Identification of a rest can be performed by applying a method such as assigning a specific code that is not used in pitch information. When notes with a flag (also called “fuco”) such as eighth notes and sixteenth notes are continuous, the flags are grouped together with a thick horizontal line (also called “keta”). The notation that is tied together is performed, but such identifier information for “Keta” notation is added to the note information. In addition to this, the musical score includes identification information for treble clef (treble clef), treble clef (bass clef), haf clef (alto, tenor, soprano, etc.), tone by #, ♭, etc. Symbols such as 4/4, 2/4, and 3/4, and tie symbols that combine notes of the same pitch are used, and these are also defined so that information can be expressed. The information obtained by arranging these pieces of information in accordance with the arrangement order on the score, in other words, the order of performance is the score display information. If the display positions of the five lines and bar lines are determined in advance, the display positions of the note heads (tama) are naturally determined. Depending on the size of the note value, the arrangement position of each note within the width of one measure is naturally determined. Information on the drawing position of each note or rest may be added to each note or rest. In addition to these, various notations such as temporary symbols (also referred to as change symbols), dynamic symbols, velocity slogans, idea slogans, and rendition slogans are added to the musical score. Defines information corresponding to each and adds them to the array together with their drawing positions. Such musical score display information is known to be defined in various formats in a software program for composition and arrangement that operates on a personal computer called desktop music, and is also called SMDL (Standard Music Description Language). Since the standard is established by ISO / IEC, any one of them may be applied.

  The music performance information may be, for example, MIDI standard music performance information. The MIDI standard defines note number information indicating pitch, note-on information indicating sound generation timing, note-off information indicating sound generation stop timing, and on-velocity information indicating sound volume. In the case of timbre information for designating, and polyphonic music, various information such as music part identification information is defined. These are sequentially read according to the time progress of the performance, and supplied to a MIDI synthesizer such as the musical tone generator 25 so that music performance can be performed.

  The note information and rest information in the score display information correspond to, for example, note number information, note-on information, and note-off information in the MIDI standard. Therefore, note information and rest information in the score display information are in accordance with the MIDI standard. Note number information, note-on information, note-off information, etc. can be converted. Accordingly, when the score display information added with the information defined in the MIDI standard is stored in the score information storage unit 20 as score information, score display information and music performance information are respectively generated from the score information. It becomes possible. Note that the musical score display information used in the above-described desktop music composition and arrangement software programs and the Standard Music Description Language (SMDL) standard can also generate music performance information that conforms to the MIDI standard. Therefore, it is not only musical score display information but also musical score information capable of generating music performance information.

  Needless to say, the above information (score information, score display information, music performance information, etc.) may have other structures and formats.

  Next, the operation of the performance support electronic musical instrument of the present invention will be described. The musical score information storage unit 20 stores musical score information for a plurality of music pieces. First, when the performer rotates the knob 1 and the knob 3 and operates the program instruction unit 22 and the time signature instruction unit 23, the score information control unit 21 displays information on the program title and the time signature on the display control unit 30. The display control unit 30 expands the title name and time signature information to the title name and time signature characters, and supplies them to the touch panel display 31. The touch panel display 31 displays the title name and time signature characters. 1 song title area 2 and time signature area 4 are displayed. The performer rotates the knobs 1 and 2 until the desired title name and the desired number of beats appear, and when the desired title name and the desired number of beats are found, the operation of the knobs 1 and 2 is finished.

  When the performer operates the program instruction unit 22 to select a desired program name, the score information control unit 21 supplies the score information storage unit 20 with a read address of the specified program name, and the score information storage unit 20 provides a score. Reading of the musical score information of the title title instructed from the information storage unit 20 is started. First, six bars from the beginning of the score information are read out, converted or generated into a score display information format, and supplied to the display control unit 30 for the display area 12. The musical score information control unit 21 supplies the musical score display information for the first two bars to the display control unit 30 for the display areas 14 and 15. The display control unit 30 develops a six-measure score screen at the position of the display area 12 in FIG. 1 based on the six-measure score display information for the display area 12, and displays two measures for the display areas 14 and 15. Based on the musical score display information, musical score screen information in which a two-measure musical score screen is developed at the positions of the display areas 14 and 15 in FIG. 1 is generated. The expanded musical score screen information is supplied to the touch panel display 31, and a musical score figure as shown in FIG. 1 is displayed on the touch panel display 31.

  Next, the automatic performance mode will be described. The automatic performance mode itself is a well-known mode based on automatic accompaniment, but it is necessary for understanding the present invention and will be described. When the performer operates the start operation unit 24 to instruct the start of performance, the score information control unit 21 starts reading out the score information of the title instructed from the score information storage unit 20 and generates music performance information. And supplied to the musical sound generator 25.

  By the above operation, the first bar is first displayed in the display area 14, the second bar is displayed in the display area 15, and the performance of the first one bar ends, and the second bar starts. Then, the score information control unit 21 reads the score information of the third measure, converts or generates the score display information format, and supplies it to the display control unit 30 for the display area 14. In the display control unit 30, the musical score screen for the six bars for the display area 12 is left as it is, and the musical score screen information for the display areas 14 and 15 is developed based on the musical score display information for the second and third measures. Then, the musical score screen information updated only in the display area 14 is generated. The touch panel display 31 displays the second measure in the display area 15 and the third measure in the display area 14. The musical score information control unit 21 generates music performance information for the second measure and sequentially supplies it to the musical sound generating unit 25, and the music performance of the second measure proceeds. When the performance of the second measure is finished and the third measure is started, the score information control unit 21 reads the score information of the fourth measure, converts it into a score display information format, and generates it for the display area 15. This is supplied to the display control unit 30. In the display control unit 30, the musical score screen for six bars for the display area 12 is left as it is, and the musical score screen information for the display areas 14 and 15 is developed based on the musical score display information for the third and fourth bars. Then, the score screen information updated only in the display area 15 is generated. The touch panel display 31 displays the third measure in the display area 14 and the fourth measure in the display area 15. Each time the performance of one measure is finished and the next measure is started, the score of the two measures of the started measure and the next measure is displayed side by side in the display areas 14 and 15. The performance progresses in the order of the display area 14, then the display area 15, then the display area 14, and then the display area 15.

  Note that the method of using the display areas 14 and 15 described above is suitable, but it goes without saying that the method of using the other display areas 14 and 15 may be used. That is, the above-described score information display algorithm is an example, and other display algorithms may be used. For example, first bar 1 is displayed in the display area 14, second bar is displayed in the display area 15, and when the performance of the first bar and the second bar is finished, the score information control unit 21 The musical score information of the third bar and the fourth bar may be read out, converted into a musical score display information format or generated, and supplied to the display control unit 30 for the display area 14 and the display area 15, respectively. In this case, the touch panel display 31 displays the third measure in the display area 14 and the fourth measure in the display area 15 after the performance of the first measure and the second measure is finished.

  In addition, for example, the score information control unit 21 reads out the score information of the measure to be played next to the currently played measure, converts or generates the score display information format, and uses the display control unit 30 for the display area 14. May be supplied. In such a case, the display control unit 30 generates, for the display area 14, the score screen information of the measure to be played next to the currently playing measure. The touch panel display 31 displays a measure to be played next to the currently played measure in the display area 14. Then, the display control unit 30 generates the musical score screen information of the bars to be played for the display area 15. The touch panel display 31 displays a performance target measure in the display area 15.

  Further, in FIG. 1, the display area is three of the display area 12, the display area 14, and the display area 15, but it may be two or four or more. That is, various musical score information display modes are conceivable.

  When the performance progresses and the sixth measure is started, the score information control unit 21 reads the score information for the next six measures, generates score display information, and displays it for the display area 12 to the display control unit 25. The first bar is supplied to the display control unit 25 for the display area 14, and the display control unit 30 develops the musical score screen information for the display areas 14 and 15 to display the touch panel display 31. To supply. When the above operation is repeated, the score display in the display area 12 is updated every performance of six bars, and the score display in the display areas 14 and 15 is updated every performance of one measure. The musical score of the measure being played is displayed in the order of display area 14, display area 15 for the next measure, and display area 14 for the next measure.

  At the end of the song, there may be no six bars remaining. In that case, the score information control unit 21 reads out only the score information for the number of remaining bars, and the score is displayed on the display control unit 30 and the touch panel display 31. Display.

  In the above operation, the speed of the music performance information generated by the score information control unit 21 and supplied to the musical sound generation unit 25 is determined by the time signature information. The time signature of quarter note = 100 is a tempo at which a quarter note is hit 100 times per minute, that is, 100 beats. The musical score information control unit 21 has a counter function for counting clock signals. When the musical score information control unit 21 plays a quarter note, after instructing the generation of the sound of the quarter note, the score information control unit 21 causes the counter to count time of 1/100 minutes = 0.6 seconds, and then The operation moves to the instruction to generate the musical sound of the note. Since such an operation is well known in an automatic performance operation using an automatic musical instrument or desktop music, further explanation is omitted. The operation described above is basically an automatic performance mode in which the electronic musical instrument determines the speed of the time signature.

  Next, the operation when the performer determines the time signature by his performance will be described. This mode will be referred to as a manual performance mode. In this manual performance mode, the performer selects each note to be sounded next by pressing each note in the display area 14 with a finger. In the case of the display area 14 in FIG. 1, if a treble clef is used, a quarter note (F), a quarter note (L), a quarter note (F), an eighth note (F), an eighth note (F), If you hold down in order according to the note length of each note (referred to as the note value), you can play one measure of [Farashi-Fa-Fa]. The speed and accuracy of the time signature are determined by the timing of each note. For this purpose, the score information control unit 21 adds note designation information indicating which note should be pressed next to the score display information and supplies it to the display control unit 25. The display control unit 30 provides a pressing area around the note display screen for the note information to which the note designation information is added. Specifically, the coordinate information of the note head (also referred to as “tama”), that is, the area of the black circle or the white circle is supplied to the coordinate comparison unit 33. This coordinate information will be referred to as pressed area coordinate information. The pressed area coordinate information can be expressed by the center coordinate information and radius information of the note head, but may be coordinate information indicating a rectangular area instead of the circular area. When the performer presses the screen of the touch panel display 31, the touch panel display 31 detects a touch and supplies touch coordinate information indicating the coordinates (X, Y) of the pressed position to the coordinate comparison unit 33.

  When the coordinate comparison unit 33 compares the pressed area coordinate information with the touch coordinate information and determines that the coordinates (X, Y) are within the area of the pressed area coordinate information, the coordinate comparing unit 33 should be pressed next, in other words, It is determined that the note to be pronounced has been selected, and the time determination instruction information is output to the time determination unit 34. When the time signature determination unit 34 receives the time signature determination instruction information, the time signature determination unit 34 supplies this information as it is to the musical score information control unit 21 as stepping instruction information. When the musical score information control unit 21 receives the step instruction information, the musical score information control unit 21 generates music performance information for generating a note to which the note designation information is added and supplies the music performance information to the musical sound generation unit 25. The musical sound generating unit 25 generates a musical sound having a corresponding pitch in accordance with an instruction from the musical score information control unit 21 and outputs it as a music signal. The score information control unit 21 adds note designation information to the next note and supplies it to the display control unit 25 as score display information. The display control unit 30 supplies the coordinate comparison unit 33 with the pressing area coordinate information of the note head of the next note. In this state, the next note is ready for performance, and the musical instrument operation unit 10 waits for the performer to press the next note on the display area 14. In the manual performance mode, the time signature may not be counted by the internal counter of the musical score information control unit 21 described in the automatic performance mode. The accuracy of the time signature depends on the performance of the performer.

In the performance support electronic musical instrument of the present invention, when the time signature of the performer is significantly deviated, the time signature correction mode I is provided to make it close to the original time signature. This mode is a mode in which when the player's time signature suddenly deviates suddenly, the time signature of the performance is corrected so that it does not deviate beyond the range close to the previous player's time signature. For this purpose, the score information control unit 21 uses the denominator note value information of the time signature of the tune selected by the tempo instruction unit 23, the beat note value information V _a calculated from the beat number information, and one beat. The time information D _a and the note value information V _i of the currently sounding note are supplied to the time signature determination unit 34.

Here, note value information V _i is information indicated by the length of a note such as a quarter note or an eighth note, but represents the relative length of the note, and can be expressed by numerical information for convenience. . If the minimum resolution is 128th note and the value of 128th note is defined as [1] so that fine (short time) notes such as decorative notes can be expressed, 64th note = [2] , 32nd note = [4], 16th note = [8], 8th note = [16], 4th note = [32], 2nd note = [64]. Therefore, the note value of dotted quarter note = [32 + 16] = [48] is obtained. Since the note value of all notes is one measure long, it can be determined once the time signature is determined. Beat note value information V _a is, the note shown in the denominator of the time signature, i.e., a note value of notes of one beat. In the case of 4/4 time, since 1 beat is a quarter note, V _a = [32]. In the case of 6/8, since 1 beat is an eighth note, V _a = [16]. It is. One heartbeat period information D _a represents the time length of one beat. In the case of a quarter note = 100, there are 100 beats per minute, so D _a = 600 milliseconds.

Accordingly, when the performer determines the number of beats by means of the number-of-beats instruction section 23, one beat time information _Da is determined according to the metronome symbol. Beat note value information V _a is determined by the time signature of the music information of the repertoire. Note value information V _i is determined by each note information and the rest information of music information of the repertoire. Taking a section of a piece of C major, 4/4 time as shown in FIG. 3 as an example, each note is denoted by N _i-4 , N _i-3 , N _i-2 , N _i-1 , N _i , N _{i + 1.} , expressed as · · · · _{N i + 4,} the note value _{is, N i-4 = [32} ], N i-3 = [32], N i-2 = [48], N i-1 = [16 ], N _i = [48], N _{i + 1} = [16], N _{i + 2} = [16], N _{i + 3} = [32], N _{i + 4} = [16].

Next, as information regarding the performance timing of the performer, the time interval from the time when the note N _i is pronounced to the time when the next note N _{i + 1} is pronounced is denoted by d _i . The performer is, now, to the point of just holding down the note N _i. Since the notes N _i-4 , N _i-3 , N _i-2 , N _i-1 , N _i have already been played, the time intervals d _i-4 , d _i-3 , d _i-2 , d _{i −1} is known. d _i is undecided because the note N _{i + 1} is not played. Player of tempo can be stable if you are, predict d _i is to what extent. a predicted value of d _i representing the _{{d i}.} The predicted value {d _i } is calculated by the following equation. The predicted value {d _i } is scheduled touch time information based on the time signature of the performer.

Equation 1 above calculates the time signature of the performer based on three time intervals determined from the performance times of the last four notes. Giving a weight factor of 0.7 for the latest time interval d _i-1 , 0.2 for the previous d _i-2, and 0.1 for the previous d _i-3 , Weighted average. Moreover, since the note values of each note are not necessarily equal, normalization coefficients (V _a / V _i-1 ), (V _a / V _i-2 ), (V _a / V _i-3 ) is applied to each term and normalized to a note value of 1 beat, and then a weighted average is taken. The left side is obtained by normalizing the predicted value {d _i } to 1 beat. It is highly likely that the performer plays the currently played note for the duration of the predicted value {d _i } and then moves to the next note. Note that the number of notes used in the calculation of the predicted value {d _i }, that is, the number of terms on the right side may be increased. The weighting factors of 0.7, 0.2, and 0.1 may be changed from this value.

Next, a method for acquiring d _i-1 , d _i-2 , d _i-3 and a method for utilizing {d _i } in the time signature determination unit 34 will be described. The time signature determination unit 34 includes a timer that is a time counter. When the time signature determination unit 34 receives the time signature determination instruction information from the coordinate comparison unit 33, the time signature determination unit 34 starts a timer, counts the timing until the next time signature determination instruction information is received, measures the time interval, and stores the measurement result. . When the performer touches the note _Ni-3 , the time signature instruction information for (i-3) is supplied to the time signature determination unit 34. Next, when the performer touches the note _Ni-2 , the time determination instruction information for (i-2) is supplied to the time determination unit 34. During this time, the time interval d _i-3 is obtained by counting the timer. When the same operation is repeated, the time signature determination unit 34 can acquire the data of d _i−1 , d _i−2 , and d _i−3 when the note N _i is touched.

When the actual _di is significantly deviated from the time interval {d _i }, the time signature determination unit 34 instructs the musical score information control unit 21 to specify the timing of musical tone generation so as to correct the time signature according to the deviation. . The beat determination instruction information supplied from the coordinate comparison unit 33 with the touch of a note N _i, but the timer has started counting, beat determination unit 34, the count value of the timer, the predicted value {d _i} - Comparison operation is performed with Δd and the predicted value {d _i } + Δd. The predicted values {d _i } and Δd are examples of the estimated touch time information and the allowable error information in the present invention, respectively. When the performer touches the note N _{i + 1} , the next time signature determination instruction information is supplied from the coordinate comparison unit 33. The count value of the timer at this time is equivalent to d _i. When this d _i is compared with the predicted value {d _i } −Δd and the predicted value {d _i } + Δd, and {d _i } −Δd ≦ d _i ≦ {d _i } + Δd, the time signature determination unit 34 supplies the step instruction information to the musical score information control unit 21 and instructs the musical score information control unit 21 to generate a musical tone of the note N _{i + 1} . That is, since the sound of the note N _{i + 1} is performed at the timing when the player touches the note N _{i + 1,} beat of the player is adopted as it is. On the other hand, in the case of d _i <{d _i } −Δd, the touch timing of the note N _{i + 1} is too early, so the timer waits until {d _i } −Δd is counted, and becomes {d _i } −Δd. At that time, the time signature determination unit 34 supplies the step instruction information to the score information control unit 21 and instructs the score information control unit 21 to generate a musical tone of the note N _{i + 1} . On the other hand, in the case of {d _i } + Δd <d _i , that is, even when the count value of the timer reaches {d _i } + Δd, the time signature determination instruction information is not supplied to the time signature determination unit 34, the note N _{i + 1} Since the touch timing is too late, when the timer reaches {d _i } + Δd, the time signature determination unit 34 supplies the step instruction information to the score information control unit 21, and the score N _{i + 1} is supplied to the score information control unit 21. Instruct the generation process of the musical tone. The time signature determination unit 34 resets the timer and starts counting d _{i + 1} at the same time as outputting the step instruction information. In the musical score information control unit 21, since the musical tone generation processing for the note N _{i + 1} has been completed, the note designation information for the note N _{i + 2} is supplied to the display control unit 25 as the musical score display information, and the press area coordinates for the next note N _{i + 2} are supplied. The display control unit 25 is instructed to output information. Therefore, {d _i} + performer since Δd even touch detection by touching note N _{i + 1} is shifted to a note N _{i + 2,} since not output time signature determination instruction information for the note N _{i + 1,} note N _{i + 1} is 2 It is never pronounced.

In the present invention, the region range indicated by the inequality {d _i } −Δd ≦ d _i ≦ {d _i } + Δd is formed by predetermined touch scheduled time information {d _i } and a predetermined allowable error range Δd. It is an example of touch scheduled time range information. Δd indicates whether the predetermined touch scheduled time information coincides with the allowable error range. The value of Δd may be changed by practice. Usually, about 10% to 30%, typically about 15% of {d _i } is suitable. However, other values may be used, or even fixed values are useful for practice.

By performing the above operation on each note, if the player's touch timing deviates by more than Δd time with respect to {d _i }, the touch timing and sound generation timing will deviate. The person knows that the time signature is not correct. The performer can then try to correct the time signature. On the other hand, when the time signature is slightly shifted, the player's time signature is adopted, so that the expression intention of the player can be reflected in the performance.

It should be noted that at the beginning of the score, since it can not calculate such predicted values {d _1}, based on the one heartbeat period information D _a, may be used to calculate the {d _1} of the first note N ₁ . For example, when time signature = 4/4 and time signature = 100, a quarter note is 100 beats per minute and D _a = 600 milliseconds. In the case of a song with a note N ₁ = quarter note, {d ₁ } = 600 milliseconds, and in the case of a note N ₁ = 8 note, {d ₁ } = 300 milliseconds.

In the example of the score of FIG. 3, there is no rest, but when there is a rest, the note value of the rest may be included in the note value of the preceding note. For example, when a quarter note, an eighth rest, and an eighth note follow in order, the note value of the quarter note is obtained by adding the amount of the note value of the eighth rest, [32] + [16] = [48]. If you touch the quarter note and touch the eighth note after a time corresponding to the note value = [48], the correct time signature will be played. Even when ties are applied to multiple notes, the note values of these notes are added to obtain the note value of the first note, and the next pressed area coordinate information may be issued for the next note of the tie. . By doing in this way, the degree of time signature accuracy can be calculated even for a note that is not at the position where the time signature is hit, and {d _i } can be continuously measured.

  The musical score information storage unit 20 is preferably a non-volatile recording medium, but can also be realized by a volatile recording medium. An HDD in a personal computer may be used. The musical score information control unit 21 can usually be realized by an MPU, a memory, or the like. The reading of the musical score information, the generation of musical score display information based on the musical score information, and the generation of music performance information are basically performed in the same manner as a well-known desktop music (DTM) software program, and will not be described in a detailed flowchart. Normally, these software are recorded on a recording medium such as a ROM or an HDD. However, it may be realized by hardware (dedicated circuit).

  The display control unit 30 can also be usually realized by an MPU, a memory, or the like. The generation of the score screen information based on the score display information is basically the same as a known desktop music (DTM) software program, and therefore will not be described in a detailed flowchart. Normally, these software are recorded on a recording medium such as a ROM or an HDD. However, it may be realized by hardware (dedicated circuit).

  As the coordinate detection unit 32, a known circuit built in the touch panel display 31 can be used.

  The coordinate comparison unit 33 and the time signature determination unit 34 can be usually realized by an MPU, a memory, or the like. The coordinate comparison process of the coordinate comparison unit 33 described in detail in the above embodiment can be realized by a simple information comparison program. The time signature determination process of the time signature determination unit 34 may be performed by using the hardware timer or software timer inside the MPU to perform monitoring processing of the count value, arithmetic processing and timing determination processing for each of the above inequalities, It is clear that such processing can be realized by a software program. Normally, the software program for each of these processes is recorded on a recording medium such as a ROM or HDD. However, it may be realized by hardware (dedicated circuit).

FIG. 4 is an example of a flowchart of the processing procedure of the time signature determination unit 34. Here, T _a = {d _i } −Δd and T _b = {d _i } + Δd. T _a corresponds to the leading edge of the time width in which the player's touch timing is adopted as the sound generation timing, and T _b corresponds to the trailing edge. The time signature determination unit 34 always determines whether or not the timer count value T _i has reached T _b by (Step S17) and (Step S18). When the timer count value T _i reaches T _b , In step S18), the answer is Yes, and the process proceeds to (step S16). In (step S16), and beat determination unit 34, in order to pronounce the note N _i is the note, and instructs the playing continues by outputting the increment instruction information to the score data control unit 21, the timer is reset Then, a new count is started, and the count value T _{i of the} timer is adopted and determined as d _i . The time signature determination unit 34 sets i to i + 1, and proceeds to processing of the next note N _{i + 1} . The time signature determination unit 34 obtains V _{i + 1} of the next note from the musical score information control unit 21, and determines the new d _i and the previous d _i-1 , d _i-2, etc. Is also used to calculate the predicted value {d _{i + 1} } according to Equation 1. Then, it based on the predicted value _{{d i + 1},} and calculates the _{T a} and _{T b.} Thereafter, in (step S10), an interruption due to the occurrence of time signature instruction information relating to the next note is waited for.

If there is an interruption before T _i > T _b for the note N _i , the time signature determination unit 34 proceeds from (Step S10) to (Step S11), acquires the count value T _{i of the} timer, and d _i = Let T _i . In (Step S12), if d _i ≧ T _a , No, and go to (Step S15). In (step S15), if d _i <T _b , the determination becomes Yes, and the process proceeds to (step S16). In (step S16), and as already explained, sounding instruction and note _{N i} for music information control unit 21 in the touch timing _d i = _{T i,} the preparation process for the next musical note _{N i + 1} is performed. If Yes in (step S12), the even if touch timing is too early, (step S13) and (step S14), and repeated until the timer reaches _{T a,} it becomes a T i = _{T a} (step in S14) becomes Yes, (the process proceeds to step S16), and sound generation instruction and note _{N i,} the preparation process for the next musical note _{N i + 1} is performed.

If the determination in (Step S15) is No, the process returns to (Step S10). If the determination in (step S15) is No, the case touch timing was slower than _{T b.} In such a touch timing is later than T _b is (step S18), and the processing of (step S16), and the timer is already reset, and proceeds to process the next note N _{i + 1,} also, the pressing area coordinates The information has also moved to the coordinates for the note N _{i + 1} , and touching the note N _i does not generate time signature instruction information, and no interruption occurs in (step S10), so (step S15) may be omitted. . In other words, it is not No in (Step S15).

_{{D i}} in (step S16) in _the case of d i _{<T a,} may be _{T a} even d _i = _T i. Applying T _a, it is considered if sweet touch timing was more accurate than performance of the player, it will calculate the next prediction value {d _i}. If the touch timing is later than T _b, the value of d _i cannot be acquired, and T _{b is set} to d _i instead. In this case as well, the next predicted value {d _i } is calculated on the assumption that the touch timing is more accurate than the performance of the performer. Although the touch timing of the player can be realized by the deformation of the method a similar process to d _i, the configuration is slightly complicated, such as a timer used two.

When the music score information control unit 21, the display control unit 30, the coordinate comparison unit 33, and the time signature determination unit 34 are implemented by a software program, the program is stored on a storage medium such as a personal computer HDD as a single personal computer program. A CPU in the personal computer can execute each of the above processes in a multitasking format or the like. Such a realization method is applicable also to each embodiment described below.
(Embodiment 2)

In the above Embodiment 1, one heartbeat period information D _a is based on the time signature number selected by the beat number instruction unit 23, in the following notes first few songs were not used. In this embodiment, also described meter correction mode II to actively utilize one heartbeat period information D _a. One heartbeat period information _{D a,} beat note value information _{V a,} note value information _{V i,} the value calculated by the note _{N i, D i = (D} a / V a) V i is the number of beats that are selected This is the time interval for the performer to touch the next note N _{i + 1} when performing as shown in FIG. _Let D _i = (D _a / V _a ) V _i be called the regular time interval of the note N _i . In this mode, the time signature is determined by timing comparison using the regular time interval D _i instead of the predicted value {d _i } in the first embodiment.

When the actual d _i deviates significantly from the regular time interval D _{i, the} time signature determination unit 34 instructs the musical score information control unit 21 to specify the timing of musical tone generation so as to correct the deviation. The beat determination instruction information supplied from the coordinate comparison unit 33 with the touch of a note N _i, but the timer has started counting, beat determination unit 34, the count value of the timer, D _i -ΔD and, Comparison operation is performed with D _i + ΔD. When the performer touches the note N _{i + 1} , the next time signature determination instruction information is supplied from the coordinate comparison unit 33. The count value of the timer at this time is equivalent to d _i. The _{d i} and _D i _-ΔD, and compares _{D i} + [Delta] D, _{and, D i -ΔD ≦ d i ≦} D i + ΔD, in the case of, beat determination unit 34, the score information control unit the increment instruction information 21 to instruct the musical score information control unit 21 to generate musical notes of musical notes N _{i + 1} . That is, since the sound of the note N _{i + 1} is performed at the timing when the player touches the note N _{i + 1,} beat of the player is adopted as it is. On the other hand, when d _i <D _i −ΔD, the touch timing of the note N _{i + 1} is too early, so the timer waits until D _i −ΔD is counted, and when the time reaches D _i −ΔD, the time signature determination unit 34 supplies the step instruction information to the musical score information control unit 21 and instructs the musical score information control unit 21 to generate a musical tone of the note N _{i + 1} . On the other hand, in the case of D _i + ΔD <d _i , that is, even when the count value of the timer becomes D _i + ΔD, if the time signature determination instruction information is not supplied to the time signature determination unit 34, the touch timing of the note N _{i + 1} is determined. Since it is too late, when the timer reaches D _i + ΔD, the time signature determination unit 34 supplies the step instruction information to the score information control unit 21, and the score information control unit 21 performs the musical tone generation process of the note N _{i + 1.} Instruct. The time signature determination unit 34 resets the timer and starts counting d _{i + 1} at the same time as outputting the step instruction information. In the musical score information control unit 21, since the musical tone generation processing for the note N _{i + 1} has been completed, the note designation information for the note N _{i + 2} is supplied to the display control unit 25 as the musical score display information, and the press area coordinates for the next note N _{i + 2} are supplied. The display control unit 25 is instructed to output information.

The processing of the time signature determination unit 34 of the present embodiment can also be basically performed according to the procedure of the flowchart of FIG. However, T _a = D _i −ΔD and T _b = D _i + ΔD. T _a corresponds to the leading edge of the time width in which the player's touch timing is adopted as the sound generation timing, and T _b corresponds to the trailing edge.

_Di is scheduled touch time information based on the number of beats set by the performance support electronic musical instrument.
ΔD indicates whether or not it matches predetermined predetermined touch time information within an allowable error range. The range represented by the inequality D _i −ΔD ≦ d _i ≦ D _i + ΔD is the expected touch time range information formed by the expected touch time information and the allowable error range. It is preferable that the value of ΔD can be changed by practice. Typically, about 10% to 30% of _{D i,} typically about 15% is suitable. However, other values may be used, or even fixed values are useful for practice. In the present embodiment, operations such as the time signature determination unit 34 and the score information control unit 21 may be the same as those in the first embodiment, except that D _i is used instead of {d _i }.

Play proceeds by Yuku performing the above operation for each note, the touch timing of the player is shifted over time ΔD relative to D _i, the generation timing of the touch timing and sound is shifted, The performer knows that the time signature is incorrect. The performer can then try to correct the time signature. On the other hand, when the time signature is slightly shifted, the player's time signature is adopted, so that the expression intention of the player can be reflected in the performance.
(Embodiment 3)

The time signature determination may be performed by combining the predicted value {d _i } in the above (Embodiment 1) and the regular time interval D _i in (Embodiment 2). The third embodiment will be referred to as time signature correction mode III. In this mode, the inequality of (Embodiment 1) and (Embodiment 2), {d _i } −Δd ≦ d _i ≦ {d _i } + Δd, and D _i −ΔD ≦ d _i ≦ D _i + ΔD, If d _i satisfies both of the above expressions, the generation timing of the note N _{i + 1} is set to d _i corresponding to the player's touch timing. In other words, d _i enters section each unequal range of both inequalities are overlapped, i.e., within the time interval in which the unequal range of both inequalities are overlapping, if occurring time signature determination instruction information, The time signature determination unit 34 outputs the step instruction information at a timing corresponding to the occurrence of the time signature determination instruction information, and causes the score information control unit 21 to perform the musical note N _{i + 1} performance process.

Even if the inequality ranges of both inequalities overlap, if d _i is small, that is, if the player touches the note N _{i + 1} too early and d _i does not satisfy both equations, { Step instruction information is output at the timing of the greater of d _i } −Δd and D _i −ΔD, and the note N _{i + 1} is played. When the inequality ranges of both inequalities overlap, and conversely, d _i is large, that is, when the player's touch timing on the note N _{i + 1} is too late, and d _i does not satisfy both equations Outputs the step instruction information at the smaller timing of {d _i } + Δd and D _i + ΔD to play the note N _{i + 1} . When the above process is described again, the time determination unit 34 includes a region in which the first scheduled touch time {d _i } calculated based on the player's past time signature is sandwiched by a predetermined allowable error range Δd, Second touch schedule calculated based on first touch scheduled time range information indicating {d _i } −Δd ≦ {d _i } ≦ {d _i } + Δd and the number of beats set in the performance supporting electronic musical instrument. time D _i, a region sandwiched by a predetermined tolerance _{ΔD, D i -ΔD ≦ D i} ≦ D i + ΔD, if there is a range overlapping the second touch scheduled time range information indicating the overlapping range This is the third touch scheduled time range information.

If {d _i } is too large or too small for D _i and the inequalities of both inequalities do not overlap, then one of the inequalities is used. When the inequality {d _i } −Δd ≦ d _i ≦ {d _i } + Δd is used, the mode of the first embodiment is set. When the inequality, D _i −ΔD ≦ d _i ≦ D _i + ΔD, is used, the mode of (second embodiment) is set. When the inequality ranges of both inequalities do not overlap as described above, the time signature determination unit 34 issues a performance stop command and a warning sound generation command to the score information control unit 21 assuming that the time signatures are significantly shifted. Thus, the musical sound generator 25 may be made to emit a warning sound. In addition, the player operates a mode selection operation unit (not shown) to instruct and select the musical score information control unit 21 or the time signature determination unit 34 before the performance. Also good.

In order to execute the processing of the present embodiment in the flowchart of FIG. 4, the following changes are made. In the calculation of T _a and T _b in (Step S16), it is determined whether or not the inequality ranges of both inequalities overlap. If they overlap, the larger of {d _i } −Δd and D _i −ΔD is determined. and T _a, the smaller _{{d i}} + Δd and _{D i} + [Delta] D and _{T b.} If the inequality ranges of both inequalities do not overlap, {d _i } −Δd <{d _i } + Δd <D _i −ΔD <D _i + ΔD or D _i −ΔD <D _i + ΔD <{d _i } −Δd <{d _i } + Δd, and any value may be selected as T _a and T _b so that T _a <T _b .
(Embodiment 4)

In the above description, the score information control unit 21 causes the display control unit 25 to issue the press area coordinate information based on the score display information for all the notes of the score as shown in FIG. That is, for all the notes, {d _i } and d _i are calculated and the time signature is determined. However, as shown in the score of FIG. 5, when the touch timing for a fine note such as a sixteenth note is detected and the calculation of {d _i } is performed, there is a risk that the time signature is determined in detail. In the touch timing for a fine note, since the error ratio with respect to the time length determined by the note value generally tends to be large, {d _i } tends to be blurred, and the stability of the time signature is impaired. In the score of FIG. 5, the four 16th notes of the first bar, the fourteenth notes of the second bar, the eighth note of the first bar and the two sixteenth notes are grouped together to form a quarter note. deal with. Therefore, note value information _{V i-3, V i,} V i + 1 becomes respectively [32]. The pressed area coordinate information is the display position coordinates of the first note in the group of notes.

Therefore, note value information V _i supplied from the score information control unit 21 does not correspond to each note, for the combined notes group, the sum of their note values. Thus, a note value information sequence different from the note value information for each note in the score display is added to the score information in advance. Alternatively, an identifier indicating that the notes are collected may be added to the notes to be collected, and the note value information may be added to the notes having consecutive identifiers.

Step instruction information cannot be issued except for the first note of the collected notes. Therefore, like the sixteenth note of the second and subsequent groups it notes together was, without being beat determination, so as to tone generation according to time signature of the first one-heartbeat time set in the information D _a. Alternatively, it may be applied the beat due to _{{d i}} was converted to one beat _{(V a / V i) {} d i}. Beat determination unit 34, as _(V a / _{V i)} modifying tempo information _{{d i},} and supplies the score information control unit 21, score information control unit 21, the time signature of one heartbeat period information _{D a} (V _It is only necessary to switch _a / V _i ) {d _i } to the time signature based on the modified tempo information and supply the music performance information, that is, the MIDI performance information, to the musical sound generator 25.
(Embodiment 5)

  In each of the above embodiments, the pressed area coordinate information is the coordinate information of the area including the note head or its periphery. The pressing area coordinate information may be an area surrounding the entire note. As shown in FIG. 6, it is good also as a rectangular area surrounding a musical note. For beginners who have difficulty touching the note head accurately, such a rectangular area is easier to play. Alternatively, the display control unit 30 may develop a rectangular image on the screen of the score screen information and display it on the touch panel display 31. If the rectangular image is displayed in synchronism with the output of the pressing area coordinate information, the player can indicate the next place to be pressed one after another. Each time the player performs a touch, the performer can visually recognize where the next place is pressed. As shown in FIG. 6, two bars may be displayed simultaneously.

We have already explained that rests should be grouped with the previous note. In FIG. 6, the eighth rest and the eighth note are grouped together. Music notes are put together with rests first. On the touch panel display 31, when the performer releases the touch of the note N _i-3 and touches the note N _i-2, and within the area of the pressed area coordinate information, the time signature determination unit 34 determines the step instruction information. Is supplied to the musical score information control unit 21. The musical score information control unit 21 causes the tone generation unit 25 to stop the pronunciation of the note _Ni-3 and enters a rest state. When the note value of the rest elapses, the musical score information control unit 21 instructs the musical tone generation unit 25 to generate the eighth eighth note of the note _Ni-2 . In this way, it is determined whether or not the note value of the note N _i-3 is correctly touched.

Whether or not the rest is played correctly may be determined by whether or not the timing of speaking the touch from the note is appropriate. A touch ON / OFF signal is output from the touch panel display 31. For the rest of the note Ni _-2 , rest information indicating that the pressed area coordinate information is rest is also output, and the performance on the touch panel display 31 is performed. It may be determined whether the person has released the touch of the note Ni _-3 and touched the note Ni _-2 . Since a rest often does not perform a normal performance operation such as a touch, it may be a rest from the release of the note _Ni-3 until the next touch to the eighth note. In this way, it is determined whether or not the length of the notes played by the performer is accurate.
(Embodiment 6)

  In the performance support electronic musical instrument described in the above embodiment, the performer realized the performance by touching the touch panel. However, a touch panel is not essential. In other words, the performer gives instructions using input means such as GUI buttons on the screen, mouse buttons, keyboard keys, and numeric keypads (this is also referred to as touch). The performance may be realized. That is, in the above performance support electronic musical instrument, the touch panel display 31, the coordinate detection unit 32, and the coordinate comparison unit 33 are not essential.

  The configuration of another performance support electronic musical instrument will be described below. FIG. 7 is a block diagram showing a configuration of the performance support electronic musical instrument. The musical performance support electronic musical instrument includes a musical score information storage unit 20, a musical score information control unit 21, a music piece instruction unit 22, a time signature instruction unit 23, a start operation unit 24, a musical tone generation unit 25, a display control unit 30, a display 71, and input means 72. , A touch detection unit 73, and a time signature determination unit 74.

  The display 71 may be anything such as a CRT, a liquid crystal display, an organic EL, or a projection type projector.

  The input means 72 may be anything as long as the player inputs the sound generation timing, such as a GUI button on the screen, a mouse, a keyboard, or a numeric keypad.

  The touch detection unit 73 detects a player's touch. This touch is a touch for instructing the timing of sound generation. The touch detection unit 71 can usually be realized by an MPU, a memory, or the like. The processing procedure of the touch detection unit 73 is usually realized by software, and the software is recorded in a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  In the time signature determination unit 74, the touch timing information indicating the touch time detected by the touch detection unit 71 is within the range indicated by the predetermined touch expected time range information formed by the predetermined touch error time information and the predetermined allowable error range. If it is within the range, the musical score information control unit is instructed to continue playing based on the touch timing, and if not within the range, the minimum or maximum value of the scheduled touch time range information is determined. At the timing, the musical score information control unit is instructed to continue the performance. The time signature determination unit 74 can usually be realized by an MPU, a memory, or the like. The processing procedure of the time signature determination unit 74 is usually realized by software, and the software is recorded in a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

Note that the performance support electronic musical instrument in the present embodiment is different from the above performance support electronic musical instrument in the degree of sound generation timing input means, and its basic operation is the above performance support electronic musical instrument. Is the same.
(Embodiment 7)

  The performance support electronic musical instrument of the present invention can supply the processing procedure described above in the form of a microcomputer program.

  That is, this program is a music performance information generation procedure for generating and outputting music performance information comprising at least pitch information and volume information based on musical score information including musical notes and rests on musical scores, and musical score information including rest information. And a score display processing procedure for generating a score screen information for display consisting of at least note information and rest information based on the score information and displaying the score screen on a touch panel display for detecting a player's touch; If the position where the performer touches the touch panel display is the next note or rest, touch timing information indicating the time when the performer's touch is detected includes predetermined touch scheduled time information and a predetermined allowable error. It is determined whether or not it is within the range indicated by the scheduled touch time range information formed by the range. Instructs the musical score information control unit to continue playing based on the imming, and when it is out of range, instructs the musical score information control unit to continue playing at the timing of the minimum value or maximum value of the scheduled touch time range information A performance support electronic musical instrument that generates a next musical tone based on the performance continuation instruction information. Since each processing procedure constituting this program has been described in the description of the above embodiments, it will not be repeated. As for the time signature determination processing procedure, any one of the processing procedures of the first, second, and third embodiments may be applied.

  (Other embodiments and supplements)

  The musical notes and rest figures in the above description are those used in classical music. However, the present invention is not limited to these, and a simple musical score display in which only the note heads of the notes are simplified or the rests are omitted may be displayed. Any format that encourages the touch of performance is acceptable. Also, it may be in accordance with a musical score used in Japanese music or gagaku other than Western music. Moreover, when using as a game, the figure pattern according to the figure expression rule prescribed | regulated by the game may be sufficient. Any graphic can be used as a musical score graphic used in the present invention, as long as it represents the pitch and the timing of sound generation or the order of sound generation. Differences in sound pitch, sound generation timing, or sound generation order may be expressed by colors or graphic shapes.

  The musical score information stored in the musical score information storage unit 20 is accessed through a music data server storing dedicated musical score information through the Internet connected to the musical score information control unit 21, and the performer is downloaded from the downloadable music list. You may select the music you want to play. In addition, a package media drive such as a CD-ROM or a memory card is connected to the score information control unit 21, and a package medium storing score information is loaded into the drive, and the score information control unit 21 reads the package media. Thus, the score information may be stored in the score information storage unit 20.

  The score may display not only one part of the musical instrument to be played but also other parts on the touch panel display 31 at the same time.

  In each of the above embodiments, each process (each function) may be realized by centralized processing by a single device (system), or by distributed processing by a plurality of devices. May be.

  FIG. 8 shows the external appearance of a computer that executes the program described in this specification to realize the performance support electronic musical instrument of the various embodiments described above. The above-described embodiments can be realized by computer hardware and a computer program executed thereon. FIG. 8 is an overview diagram of the computer system 340, and FIG. 9 is a block diagram of the computer system 340.

  In FIG. 8, a computer system 340 includes a computer 341 including an FD (Flexible Disk) drive and a CD-ROM (Compact Disk Read Only Memory) drive, a keyboard 342, a mouse 343, a monitor 344, and a speaker 345. .

  In FIG. 9, in addition to the FD drive 3411 and the CD-ROM drive 3412, a computer 341 includes a CPU (Central Processing Unit) 3413, a bus 3414 connected to the CD-ROM drive 3412 and the FD drive 3411, and a boot-up program. ROM (Read-Only Memory) 3415 for storing programs such as, and RAM (Random Access Memory) 3416 connected to CPU 3413 for temporarily storing instructions of application programs and providing temporary storage space , An application program, a system program, and a hard disk 3417 for storing data. Although not shown here, the computer 341 may further include a network card that provides connection to the LAN.

  A program for causing the computer system 340 to execute the function of the performance support electronic musical instrument of the above-described embodiment is stored in the CD-ROM 3501 or the FD 3502, inserted into the CD-ROM drive 3412 or the FD drive 3411, and further the hard disk 3417. May be transferred to. Alternatively, the program may be transmitted to the computer 341 via a network (not shown) and stored in the hard disk 3417. The program is loaded into the RAM 3416 at the time of execution. The program may be loaded directly from the CD-ROM 3501, the FD 3502, or the network.

  The program does not necessarily include an operating system (OS) or a third-party program that causes the computer 341 to execute the functions of the performance support electronic musical instrument according to the above-described embodiment. The program only needs to include an instruction portion that calls an appropriate function (module) in a controlled manner and obtains a desired result. How the computer system 340 operates is well known and will not be described in detail.

  Further, the computer that executes the program may be singular or plural. That is, centralized processing may be performed, or distributed processing may be performed.

  Further, the present invention is not limited to the above-described embodiments, and various modifications can be made to the configuration of the embodiments and the expression format of each information, and these are also included in the scope of the present invention. It goes without saying that it is what is done.

  The performance support electronic musical instrument according to the present invention is useful not only as an electronic musical instrument that can perform performance support but also as one application function of a rehabilitation device for elderly people, a game device, and the like.

FIG. 2 is an external view of an embodiment of a musical instrument operation unit constituting the performance supporting electronic musical instrument of the present invention. Block diagram of performance-supporting electronic musical instrument of the present invention The figure which shows an example of the score of the performance assistance electronic musical instrument of this invention The flowchart which shows an example of the principal part of the process sequence of the performance assistance electronic musical instrument of this invention. The figure which shows an example of the score of the performance assistance electronic musical instrument of this invention The figure which shows an example of the score of the performance assistance electronic musical instrument of this invention Block diagram of performance-supporting electronic musical instrument of the present invention External view of a computer that realizes the performance supporting electronic musical instrument Block diagram of a computer system for realizing the performance supporting electronic musical instrument

Explanation of symbols

1 music selection knob 2 music display area 3 time signature selection knob 4 time signature display area 5 start button 11 touch panel display 12 score display area 13 metronome display area 14 score display area 15 score display area 20 score information storage section 21 score Information control unit 22 Program instruction unit 23 Time signature instruction unit 24 Start operation unit 25 Music sound generation unit 30 Display control unit 31 Touch panel display 32 Coordinate detection unit 33 Coordinate comparison unit 34 Time signature determination unit

Claims (10)

A musical score information storage section that stores musical score information including musical note information that is information relating to musical notes on the musical score and rest information that is information relating to rests on the musical score;
Using the score information, music performance information including at least pitch information and volume information is generated and output, and using the score information, display score information including at least note information and rest information is generated. A musical score information control unit for outputting
A display control unit that generates and outputs score screen information based on the display score information;
A score display section for displaying a score screen based on the score screen information;
A touch detection unit for detecting a player's touch;
It is determined whether touch timing information indicating a touch time detected by the touch detection unit is within a range indicated by predetermined touch expected time information and predetermined touch error time range information formed by a predetermined allowable error range. If it is within the range, the musical score information control unit is instructed to continue playing based on the touch timing, and if not within the range, the musical score information control is performed at the timing of the minimum value or maximum value of the scheduled touch time range information. A time signature determination unit that instructs the unit to continue playing,
A performance-supporting electronic musical instrument comprising: a musical sound generating unit that receives the music performance information or the performance continuation instruction from the musical score information control unit and generates a musical sound based on the music performance information or the performance continuation instruction. A musical score information storage section that stores musical score information including musical note information that is information relating to musical notes on the musical score and rest information that is information relating to rests on the musical score;
Using the score information, music performance information including at least pitch information and volume information is generated and output, and using the score information, display score information including at least note information and rest information is generated. A musical score information control unit for outputting
A display control unit that generates and outputs score screen information based on the display score information;
A touch panel display for displaying a score screen based on the score screen information and detecting a player's touch;
A coordinate detection unit that generates and outputs touch coordinate information indicating a position where the performer touches the touch panel display; and
Information included in the score screen information, which is received from the display control unit, press area coordinate information indicating an area on the touch panel display where a player's touch can be detected, and the touch coordinate information and the press area coordinates When the touch coordinate information is within the area indicated by the pressed area coordinate information by comparing with the information, it is determined that the next note or rest has been touched, and the time signature determination instruction information for instructing the time signature A coordinate comparison unit that outputs
Based on the time signature instruction information, the touch timing information indicating the time when the player's touch is detected is within a range indicated by the predetermined touch time range information formed by the predetermined touch time information and a predetermined allowable error range. If it is within the range, the musical score information control unit is instructed to continue playing based on the touch timing, and if not within the range, the minimum value or the maximum value of the scheduled touch time range information is determined. A time signature determination unit that instructs the music score information control unit to continue playing at the timing of
A performance-supporting electronic musical instrument comprising: a musical sound generating unit that receives the music performance information or the performance continuation instruction from the musical score information control unit and generates a musical sound based on the music performance information or the performance continuation instruction. 2. The rest information of the musical score information is musical score information that has been changed or changed so that at least a numerical value of note value information representing the length thereof is included in the note value information of the previous note. Or the performance assistance electronic musical instrument of Claim 2. 3. The performance support electronic musical instrument according to claim 2, wherein the pressed area coordinate information is information representing coordinates of an area surrounding a part of or the whole of a displayed note and / or rest on a touch panel display. . The time signature determination unit, when the touch timing information is too small and out of the range of the scheduled touch time range information, instructs the score information control unit to continue playing at the timing of the minimum value of the planned touch time range information. When the touch timing information is excessive and is outside the range of the scheduled touch time range information, the musical score information control unit is instructed to continue playing at the maximum timing of the planned touch time range information. The performance support electronic musical instrument of Claim 1 or Claim 2. The scheduled touch time information is information representing a scheduled touch time calculated based on a player's past time signature, and the scheduled touch time range information includes a region sandwiching the scheduled touch time within a predetermined allowable error range. 3. The performance support electronic musical instrument according to claim 1, wherein the performance support electronic musical instrument is information to be shown. The scheduled touch time information is information representing a scheduled touch time calculated based on the number of beats set in the performance support electronic musical instrument, and the scheduled touch time range information includes the estimated touch time within a predetermined allowable error range. The performance support electronic musical instrument according to claim 1 or 2, wherein the performance support electronic musical instrument is information indicating a region sandwiched between. The time signature determination unit includes first scheduled touch time range information indicating an area sandwiched by a predetermined allowable error range with a first scheduled touch time calculated based on a player's past time signature, and a performance support electronic musical instrument. If there is a range overlapping the second scheduled touch time calculated based on the number of beats set in step 2 with the second scheduled touch time range information indicating a region sandwiched by a predetermined allowable error range, the overlapped range is As third touch scheduled time range information,
Based on the time signature determination instruction information, it is determined whether or not touch timing information indicating the time when the player's touch is detected is within the range indicated by the third scheduled touch time range information. Based on the touch timing, the musical score information control unit is instructed to continue the performance, and if it is out of range, the musical score information control unit is instructed to continue the performance at the timing of the minimum value or the maximum value of the scheduled time range information. The performance supporting electronic musical instrument according to claim 1 or 2 to be performed. Computer
Reading musical score information stored in a storage medium, generating and outputting music performance information including at least pitch information and volume information using the musical score information, and using the musical score information, at least musical note information And a musical score information control unit for generating and outputting musical score information for display comprising rest information,
A display control unit that generates and outputs score screen information based on the display score information;
A score display section for displaying a score screen based on the score screen information;
A touch detection unit for detecting a player's touch;
It is determined whether touch timing information indicating a touch time detected by the touch detection unit is within a range indicated by predetermined touch expected time information and predetermined touch error time range information formed by a predetermined allowable error range. If it is within the range, the musical score information control unit is instructed to continue playing based on the touch timing, and if not within the range, the musical score information control is performed at the timing of the minimum value or maximum value of the scheduled touch time range information. A time signature determination unit that instructs the unit to continue playing,
A program for receiving the music performance information or the performance continuation instruction from the musical score information control unit and functioning as a musical sound generating unit for generating a musical sound based on the music performance information or the performance continuation instruction. Computer
Reading musical score information stored in a storage medium, generating and outputting music performance information including at least pitch information and volume information using the musical score information, and using the musical score information, at least musical note information And a musical score information control unit for generating and outputting musical score information for display comprising rest information,
A display control unit that generates and outputs score screen information based on the display score information;
A coordinate detection unit that generates and outputs touch coordinate information representing a position where the performer touches the touch panel display;
Information included in the score screen information, which is received from the display control unit, press area coordinate information indicating an area on the touch panel display where a player's touch can be detected, and the touch coordinate information and the press area coordinates When the touch coordinate information is within the area indicated by the pressed area coordinate information by comparing with the information, it is determined that the next note or rest has been touched, and the time signature determination instruction information for instructing the time signature A coordinate comparison unit that outputs
Based on the time signature instruction information, the touch timing information indicating the time when the player's touch is detected is within a range indicated by the predetermined touch time range information formed by the predetermined touch time information and a predetermined allowable error range. If it is within the range, the musical score information control unit is instructed to continue playing based on the touch timing, and if not within the range, the minimum value or the maximum value of the scheduled touch time range information is determined. A time signature determination unit that instructs the music score information control unit to continue playing at the timing of
A program for receiving the music performance information or the performance continuation instruction from the musical score information control unit and functioning as a musical sound generating unit for generating a musical sound based on the music performance information or the performance continuation instruction.

Images