JP2005084070A - Information retrieval display relative to chord - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and promptly confirm the accumulated results of practices and degrees of achievement relative to chords and another information relative to the chords. <P>SOLUTION: The information retrieval system relative to the chords consists of a personal computer 1 and keyboard instrument 2. A storage section 15 stores the information relative to the chords. When the chords are played with a keyboard 23, the chords are detected and the information relative to the chords stored in the storage section 15 is retrieved on the basis of the detected chords. The retrieved information is display in a display element 13. The information relative to the chords include chord experience value information which is acquired when the practice person practices the chord playing or musical piece playing with the keyboard instrument 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an information search and display apparatus related to chords, and more particularly to an information search and display apparatus that can easily search and display chord experience value information accumulated by a practitioner's chord practice and other information related to chords.

  2. Description of the Related Art Conventionally, an electronic keyboard instrument in which LEDs arranged in the vicinity of a keyboard are sequentially turned on or an image of fingering is displayed together with a keyboard and a player practices key pressing using this as a guide is well known. There is also a lesson method in which music equipment such as a keyboard and an electronic piano is connected to a computer device, and a fingering image is displayed on the display unit of the computer device together with a keyboard so that a practitioner can practice while watching it. ing.

  In Patent Document 1, the chord performance of the chord to be accompanied is determined, and the chord performance is visually depressed by changing the emission color of the root and other keys to be depressed based on the determined chord type. An automatic accompaniment device for guidance is described.

Patent Document 2 describes a performance practice device that enables performance practice of a desired part in melody or accompaniment.
JP 2000-259151 A JP-A-11-288281

  However, since the known techniques and the techniques described in Patent Documents 1 and 2 merely perform performance guidance, the practitioner cannot confirm the practice results and proficiency for each chord after practice. To be able to check the practice results and proficiency level for each code practiced by the practitioner, it is possible to accumulate the practice results and proficiency level and search for the information you want to see. In this case, the method of specifying the code is troublesome, and there is a problem that it is difficult to reach the information to be viewed. In addition, when the user wants to see other information related to the code, there is a problem that the search method is similarly complicated and troublesome.

  The object of the present invention is considered in view of the above-mentioned problems. The practice results and proficiency levels for each chord practiced by the practitioner are accumulated, and the practice results accumulated for the chord by the practitioner playing the chord and The proficiency level and other information related to the code are searched and displayed so that the information related to the code can be easily and immediately confirmed.

  In order to solve the above problems, the present invention provides a storage means for storing information relating to chords, a chord detection means for detecting chords played by a musical instrument, and a chord detected by the chord detection means. A search means for searching for information relating to the code stored in the storage means and a display means for displaying the information searched by the search means are provided.

  The information regarding the chord includes chord experience value information acquired by the practice of chord performance and practice of music by the practitioner.

  Further, when a code is detected by the code detecting means, a detailed description of the code is displayed, or the display is made selectable, information useful for mastering the code is displayed, or The display can be made selectable, a list of songs including the chord can be displayed, or the display can be made selectable.

  According to the present invention, since a practitioner simply plays a chord of a musical instrument, information related to the chord is retrieved and displayed, so that information desired to be viewed can be easily and immediately obtained without requiring a troublesome operation. be able to. In addition, since the chord is played, the practitioner can confirm his / her operation with sound.

  The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a chord information retrieval apparatus according to the present invention, in which chord practice is performed on keyboard instruments such as a keyboard, piano, organ, etc. 1 shows an information search apparatus configured to store other information related to codes and search and display such information. In this example, when a practitioner performs chord practice, melody, bass, rhythm, etc. are simultaneously played back as a back performance.

  The personal computer 1 includes a personal computer main body 11, an input unit 12 such as a keyboard and a mouse, and a display unit 13 such as an LCD. As the personal computer main body 11, a well-known computer having a storage unit 15 such as a CPU 14, a ROM, a RAM, or a hard disk can be used, but it is preferable to include an interface capable of inputting and outputting MIDI signals.

  The keyboard instrument 2 includes a keyboard unit 21 and a sound system 22. The keyboard unit 21 includes a keyboard 23, a detection circuit 24 that detects key depression and key release on the keyboard 23, and a sound source circuit 25 that generates a musical sound in response to detection of the key depression and key release. The keyboard instrument 2 preferably also has a MIDI interface. The overall operation of the keyboard instrument 2 is controlled by a CPU (not shown).

  The storage unit 15 of the personal computer main body 11 is preinstalled with a code practice and information retrieval program for executing processing according to the present invention, so that the personal computer 1 and the keyboard instrument 2 can transmit and receive signals to and from each other. The connection is made via an interface (not shown) (for example, a MIDI interface).

  In the information retrieval apparatus, music performance data can be supplied from the outside, and can be stored in the storage unit 15 in advance. The music performance data includes chord practice data and back performance data such as melody, bass, and rhythm.

The back performance data includes data such as pitch data (note number), key press information (sounding start time, sounding end time), velocity, tempo, and the like, as in performance data in normal automatic performance. The chord practice data has chord information, constituent sound information, hit information, and time information for each chord, and all chords in the music are arranged.
FIG. 2 is a main flowchart showing an example of the overall processing in the present invention. When the code practice and information retrieval program stored in the storage unit 15 of the personal computer main body 11 is read and executed based on a predetermined operation at the input unit 12, the respective processes in the main flow are sequentially performed.

  First, after various initializations (S21) are performed, a menu screen for chord practice / information search selection is displayed on the display unit 13. On this menu screen, “code practice” or “information search” is selected by an operation on the input unit 12 (S22). Here, when “chord practice” is selected, practice processing is executed and a performance guide is displayed, a back performance is reproduced, etc., and the practitioner follows this to practice chords (S23).

  The current practice result of the practitioner is accumulated in the storage unit 15 as code experience value information including the practice result and proficiency level for each chord, or the code experience value information for the previous code is the practice result of the practitioner this time. Is updated to new code experience value information that takes into account (S24).

  If “information retrieval” is selected on the menu screen, initialization processing for code detection is executed and an initial screen is displayed (S25). When the practitioner plays a chord on the keyboard 23, the chord is played back by the sound system, and at the same time, a search interrupt process is executed (S26). In this search interruption process, an information search regarding a chord played on the keyboard 23 is executed, and the searched information is displayed on the display unit 13. If the information search is completed, the search for the trainee is awaited for an instruction to end the search (S27), and the information search is completed. If there is no instruction to end the search, the search interruption process is continued.

  FIG. 3 is a flowchart illustrating an example of the search interrupt process. In the search interruption process, first, when the practitioner plays a predetermined chord on the keyboard 23, the note number of the pressed key is detected, and the detected note number is registered in the array (S31). At the same time, the played chord is played by the sound system 22. Next, a combination of code type, route, and inversion type is determined from the information of the array. If a unique code consisting of a combination of type, route, and inversion is detected by this determination, the code information (type, route, inversion) of the code is stocked, but not limited to a single code, When codes are detected, the code information of the plurality of codes is stocked in the sequence (S32).

  Next, it is determined whether or not the detected code exists (S33), and if it is determined that it does not exist, the process returns. If it is determined that it exists, it is determined whether or not the detected code is unique. Is determined (S34). Here, if it is determined that the detected code is unique, the code information is determined by the code (S35).

  If it is determined that there are a plurality of detected chords, the chord information is listed and displayed on the screen of the display unit 13 to allow the practitioner to select only one chord (S36). The code information is determined by this selection (S35).

  Next, the code experience value information stored in the storage unit 15 is searched based on the confirmed code information, and the searched code experience value information is referred to (S37). Experience value information is displayed on the display unit 13 (S38). At the same time, a selection button for displaying a detailed description of the code is displayed, and the detailed description of the code is displayed by operating this button with a mouse or the like (S39). Detailed explanation information about each code is stored in the storage unit 15 in advance, and this is retrieved by code information and read out.

  Further, it is diagnosed based on the code experience value information stored in the storage unit 15 whether or not experience with the code is insufficient, and when the code experience value information is displayed (S38), It also displays whether you have insufficient experience.

  In the case of a code diagnosed as lacking experience (S40), a “hint for code master” button is displayed (S41), and information useful for mastering the code is stored by operating this button. It is retrieved from the part 15 and displayed. In addition, by connecting the personal computer 1 to the Internet, it is possible to retrieve and acquire these information from an external database via the Internet.

  In the case of a code diagnosed as not having insufficient experience (S40), a “search for a song list including this code” button is displayed (S42), and by operating this, a song including the code is searched. Are displayed as a music list. At this time, music suitable for the practitioner may be selected based on the code experience value information and displayed in a list. By selecting the music displayed in a list, performance data of the music is acquired, and the acquired performance data can be used for practice. This music can also be retrieved and retrieved from an external database via the Internet.

  FIG. 4 shows an example of the code experience value information display. The keyboard is displayed at the bottom of the display screen so that the key pressed can be seen, and the code name of the detected code and the turn form are displayed at the upper left. The number “Code A # 7 B ♭ 7 First Inversion” is displayed. Also, the grade information of each item is displayed in the center left part, the pass / fail information on whether or not the chord experience is sufficient is displayed in the center upper right part, and the music list including the chord is displayed in the lower part. Each button for searching and displaying a detailed explanation of the code and a hint for the code master is displayed. If these buttons are operated with a mouse or the like, the contents of each information can be displayed.

  FIG. 5 is a flowchart showing an example of the practice process (S23) and the code experience value information update process (S24). First, after practice initialization (S51) is performed, a menu screen for practice setting (music selection / question) is displayed on the display unit 13. In this menu screen, “music selection” or “question” is selected by the operation of the input unit 12 (S52). When “Ask” is selected here, a question setting screen (not shown) is displayed. When a code type or the like to be given on the question setting screen is selected, a question code is prepared (S53).

  For example, a number of questions are prepared for a predetermined number of questions. At this time, the code is suitable for the question setting conditions selected on the question setting screen, and the practitioner has insufficient experience or is not good at it based on the code experience value information. The questions are prepared in order of priority.

  When a plurality of code types are selected in the question setting, for example, when code types “6” and “m6” are selected, all turn of all route information of type information “6” and “m6” Refer to the average score and the highest score for each type of performance information, and select questions in order from the lowest score.

  On the question setting screen, the grade information of the code experience value information is visually easy to understand. For example, by displaying it in a pie chart of the grade information, the practitioner can understand the code that the practitioner is not good at or the inexperienced code This is convenient.

  If “Song Selection” is selected on the menu screen, a practice song list is displayed (S54). When the music piece to be practiced is selected, the music code for the music piece is prepared (S57). At the time of music selection, it is determined whether or not each chord present in the music displayed as the practice music list is inexperienced or weak based on the chord experience value information (S55). The chords that are determined to be weak and other chords are displayed differently, or the codes that are determined to be inexperienced or poor are enumerated and displayed, and the music of the music that refers to the experience of the practitioner is referred to The music selection can be made possible.

  If there is a code determined to be inexperienced or weak, a warning is displayed (S56), and the music cannot be selected. If there is no code determined to be inexperienced or weak, the music code in the music Can be prepared.

  Note that it may not be possible to select a song in which a code determined to be inexperienced or not good appears a predetermined number of times. Further, at the time of music selection, the properties of the music, such as the key and tempo, can be changed, and the code display in the music displayed in a list may be displayed accordingly.

  After the questions or music codes are prepared as described above, when the start of practice is instructed by the input unit 12, the display, playback and input routines are executed by interruption by the timer and MIDI input (S58). .

  The practice ends when a predetermined practice end condition is met, such as whether the practitioner stops the practice in the middle or whether the playing of the question code or the music reaches the end. By comparing the performance data of the performance in the practice process and the chord practice data, the chord experience value information of the practitioner is obtained for each chord and stored in the storage unit 15, or the obtained chord experience value information is In consideration of the previous code experience value information, the new code experience value information is updated (S59).

  Next, it is determined whether or not a practice end operation has been performed (S60). If the practice is not finished, the process returns to S52 to continue the practice. Subsequent preparation of the question code and warning display at the time of music selection are performed based on the updated code experience value information.

  FIG. 6 shows an example of the structure of chord practice data. The chord practice data includes chord information, component sound information, hit information, and time information for each chord. In S23 and S27, the chord practice data is arranged for the question code or the music code to constitute the question or the music code. To do.

  Here, the chord information is information such as chord root, type, bass, octave, inversion, key, and the like, and the constituent sound information is a note number array of chord constituent sounds constituting the chord. The hit information is, for each constituent sound in the constituent sound information, an array of hit flags indicating whether or not the constituent sound has been played on the keyboard 23, and a played note number array.

  The time information includes a display start time and a display end time for displaying a performance guide on the display unit 13, a sound generation start time and a sound end time for controlling the sound generation of a model chord, and the constituent sounds constituting the chord. Each component includes a component sound hit time array indicating the timing at which the component sound was played on the keyboard 23, and a practiced flag indicating that the chord has been practiced.

  FIG. 7 shows an example of the data structure of the code experience value information. In this example, the code experience value information has a hierarchical structure such as type information, route information, inversion information, event information, and grade information, and Maj, m, 7, M7, m7 in the lower layer of the code experience value information , 6, m6, sus4, etc., and expand C, C # DC, D, D # E ♭, E, F, F # G ♭, G, G # The route information array of A ♭, A, A # B ♭, B is expanded.

  In addition, in the lower layer of the route information, the rolling information array such as the basic form, the first turning form, and the second turning form is expanded, and in the lower layer of the turning form information, the event information array in each practice unit and the result information Expand the average score, the highest score, etc., expand the grade information array such as accuracy, speed, rhythm, etc. in the lower layer of the event information, and the evaluation score, number of evaluations, evaluation date, etc. in the lower layer of the grade information Is deployed.

  For example, when the practitioner plays a chord using the second inversion form of G7 for the question “G7”, the inversion information “number” of the route information “G” of the type information “7” of the code experience value information One event array of “Two-turn type” is added, and the evaluation score, the number of evaluations, the evaluation date and time, etc. are written in the result information (“accuracy”, “speed”, “rhythm”, etc.).

  FIG. 8 shows an example of specific items of the grade information array developed in the lower layer of the event information in the code experience value information. The grade information array has items of accuracy, arrangement, rhythm, progression, speed (speed), and base, and these are performance data read from the storage unit 15 and performance data obtained based on performance operation. And is evaluated by comparing.

  The accuracy is an evaluation according to the number of mistouches at the time of chord detection, the arrangement is an evaluation in consideration of the base of the music and the melody, and the rhythm is an evaluation according to the deviation from the rhythm timing.

  The progress is an evaluation according to the rotation form corresponding to the chord progression and the shift of the sound range, the speed (speed) is the evaluation according to the time required to detect the chord, and the base is based on the bass sound. It is an evaluation based on whether you are playing correctly.

  In the practice using the question code, for example, items of “accuracy” and “speed” are evaluated, and in the exercise using the musical tone code, all items are evaluated.

  FIG. 9 shows examples of conditions for setting questions. The question setting conditions consist of grades associated with task types that are ordered based on the difficulty of the chord type and the frequency of appearance in the actual music, and three practice sections set for each grade. .

  As shown in Fig. 9 (a), GRADE 1st (Major) is the lowest grade, GRADE 2nd (m), GRADE 3rd (7), GRADE 4th (M7, m7), GRADE 5th (m7- 5, dim), ... grades in order.

  The grade is composed of the three practice sections (type, turning form, chord progression) shown in Fig. 9 (b). Once the type is set, the turning form is not specified and all routes are given questions. If you set the form, you can ask questions in various turning forms, and if you set the chord progression, you will be asked by the chord progression including the task type from the database of common chord progression data.

  According to the question setting conditions shown in FIG. 9, the chord practice questions can be performed step by step according to the degree of difficulty. In this case, the first practice starts with the question of the lowest grade GRADE 1st. Once you have passed all practice sections in the current grade, you will progress to higher grades. Here, the pass / fail judgment of each practice section can be performed based on whether or not the code experience value information of all the code groups of the task type satisfies a predetermined condition.

  In addition, by changing the question frequency according to the experience of the practitioner, each code can be practiced evenly. For example, if the practitioner's experience is high in C7 and G7 and low in F # 7 and AGR7, the practice section of the GRADE 3rd type section has a low experience frequency for highly experienced C7 and G7, and inexperienced F Increase the frequency of questions for # 7 and A ♭ 7.

  The difficulty level (ease of playing, that is, the difficulty level of chords with only white keys or only black keys is low) in preparation for the case where there is not much difference in the experience of any chord at the initial stage of practice, etc. And the frequency of appearing in the actual music (such as increasing the C major tonic, dominant, and subdominant).

  FIG. 10 is a flowchart illustrating an example of a display routine, and FIG. 11 illustrates an example of a screen displayed on the display unit 13. Chord numbers are assigned to the chords in order from the beginning of the song. First, the code number is set to “0” (code number = 0) (S101), and it is determined whether the reproduction time of the code practice data with the code number “0” is within the display time (S102). If "Y" is determined here, the code name of the code is displayed (S103).

  Next, it is determined whether or not the chord is to be played next (S104). If “Y” is determined here, the chord name of the chord is enclosed in four strokes, the display color is changed, and the entire key corresponding to the tone of the chord to be played next on the displayed keyboard or The display color of a part of the key is changed (S105).

  Also, in this code information display step (S105), by changing the display color in accordance with a hit flag described later, the portion of the key pressed on the keyboard 23 is displayed separately from the others.

  Next, the code number is incremented by 1 (S106), and it is determined whether or not there is a remaining code to be processed (S107). If there is a code to be processed and the data is not a data end, the steps from S102 are repeated, but if it is a data end, the process returns.

  If “N” is determined in S102 or S104, the process proceeds to S106 and the process for the next code is started.

  By the above display routine, as shown in a specific example in FIG. 11, code names Fm6, Cm7, G only for codes whose current playback time is between the display start time and the display end time are displayed. The chord name Cm7 of the chord to be played next is displayed separately from other chord names.

  Furthermore, on the keyboard displayed on the display unit 13, the key of the constituent sound “Do, ♭ mi, so, ♭ shi” of the chord Cm7 that the practitioner should play next has a different display color from the other keys, and the keyboard 23 Keys played with will have a different display color.

  When instructing chord constituent sounds on the keyboard displayed on the display unit 13, one specific key may be instructed with respect to one constituent sound, but as shown in FIG. If all keys are indicated, the practitioner can practice using various turning forms according to the chord progression.

  FIG. 12 shows an example of a flowchart of the reproduction routine. In the reproduction routine, first, the reproduction time is updated (S121), and the back performance before the reproduction time is reproduced (S122). By playing back the rhythm and bass at the same time as the back performance, you can practice playing chords according to the rhythm and playing distributed chords.

  Next, it is determined whether or not the display end time of the chord to be played next is less than or equal to the reproduction time (S123). If it is determined as [Y], the practiced flag is set to “ON” (S124). This practiced flag is used to display the chord name and key of the chord to be played next in the same manner as the display of other chord names and keys, and to send the chord to be played next to the next chord.

  Subsequently, it is determined whether or not a chord serving as a model is being sounded (S125). If “N” is determined, it is determined whether or not the sounding start time of the next chord to be played is less than or equal to the playback time. (S126). If “Y” is determined here, the chord information or constituent sound information of the chord is referred to, and the sound generation processing of the note group of the chord (pronunciation of the chord as a model) is executed (S127). If “Y” is determined in S125, the process directly proceeds to S128.

  Next, it is determined whether or not the pronunciation end time of the chord to be played next is less than or equal to the reproduction time (S128). If “N” is determined here, the process returns. If “Y” is determined, the note group mute processing (mute of the model chord) (S129) is executed. Note that the mute process may be performed when a certain time has elapsed since the sound generation process in S127. If “N” is determined in S123, the process directly proceeds to S125, and if “N” is determined in S126, the process directly proceeds to S128.

  Through the playback routine described above, MIDI playback of back performances such as melody, rhythm, and bass is performed, and tone generation processing of a chord as a model is performed. In the chord sound generation process as a model, the next chord in the entire chord sequence in the music corresponds to the next chord by referring to the chord information or the constituent sound information when the playback time reaches the sound information start time. A note group is generated.

  In order to prevent the pronunciation of chords as examples and chords generated by pressing keys on the keyboard 23 from overlapping, the pronunciation of chords as examples is delayed for a certain period of time, and the chords that serve as examples after the performance are played. You may make it let.

  FIG. 13 shows an example of a flowchart of the input routine. When the keyboard 23 is depressed in accordance with the instruction information displayed on the display unit 13, the note number of the depressed key is input to the personal computer 1. The CPU 14 compares the note number of the pressed key with the note number of the constituent sound to be played in the chord practice data, and determines whether there is a match (S131).

  If "N" is determined here, the process returns. If "Y" is determined, the hit flag for the constituent sound is turned "ON" (S132). If the hit flag is “ON”, it means that the key of the constituent sound has already been pressed on the keyboard 23. This hit flag is used in step S105 in FIG. 10 to distinguish and display the depressed key portion.

  Next, it is determined whether or not the hit flags for all the constituent sounds to be played in the chord are “ON”, that is, whether or not the keys of all the constituent sounds to be played in the chord have been pressed (S133). If “N” is determined here, the process returns. If “Y” is determined, the practice of the chord to be played next is completed. Therefore, the practiced flag for the chord is set to “ON” (S134). The display of the code name and key of the code is returned in the same manner as the display of other code names and keys, and the next chord is sent to the next code.

  In the above, the chord experience value information accumulated by the practitioner's chord practice, the detailed explanation of the chord, or the example of searching the hint for the chord master has been explained, but the information searched in the present invention is not limited to these. Can be used to find other information about the code.

  In addition, when a code is detected, information related to the code (such as a detailed description of the code) may be directly displayed without displaying a button as shown in FIG.

  The present invention can also be configured as a device that searches for information related to chords by playing chords with not only keyboard instruments but also other instruments such as stringed instruments such as guitars.

It is a block diagram which shows one Embodiment of the information search display apparatus regarding the code | cord | chord based on this invention. It is a main flowchart which shows an example of the whole process in this invention. It is a flowchart which shows an example of a code search process. It is a figure which shows the example of a code experience value information display. It is a flowchart which shows an example of a practice process. It is a figure which shows the example of the structure of the data for code practice. It is a figure which shows the example of the data structure of code experience value information. It is a figure which shows the example of the specific item of the results information arrangement | sequence expand | deployed by event information. It is a figure which shows the example of the conditions of a question setting. It is a flowchart which shows an example of a display routine. It is a figure which shows the example of the screen displayed by a display routine. It is a flowchart which shows an example of a reproduction | regeneration routine. It is a flowchart which shows an example of an input routine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Personal computer, 2 ... Keyboard instrument, 11 ... Personal computer body, 12 ... Input part, 13 ... Display part, 14 ... CPU, 15 ... Memory | storage part, 21 ... -Keyboard part, 22 ... Sound system, 23 ... Keyboard, 24 ... Detection circuit, 25 ... Sound source circuit

Claims (5)

Storage means for storing information about the code;
Chord detection means for detecting chords played by an instrument;
Search means for searching for information related to the code stored in the storage means based on the code detected by the code detection means;
An information search apparatus for codes, comprising: display means for displaying information searched by the search means. The information retrieval apparatus for chords according to claim 1, wherein the chord information includes chord experience value information acquired by a practitioner's chord performance practice or music performance practice. 3. The information retrieval apparatus for code according to claim 1, wherein when the code is detected by the code detection means, a detailed explanation of the code is displayed or the display can be selected. 4. When a code is detected by the code detection means, useful information for mastering the code is displayed, or the display thereof can be selected. Information retrieval device regarding codes. The chord according to any one of claims 1 to 4, wherein when a chord is detected by the chord detection means, a list of music pieces including the chord is displayed, or the display thereof can be selected. Information retrieval device.

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