JP3969019B2 - Keyboard playing device and keyboard playing processing program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a keyboard performance device and a keyboard performance processing program.
[0002]
[Prior art]
Some electronic keyboard instruments are provided with LEDs (light emitting diodes) on each key of the keyboard, and the key to be pressed for a song selected by the performer from a plurality of types of songs stored in the song data ROM or the like. There is a keyboard performance device that has a function of guiding a key press by turning on an LED corresponding to. By using such a guide function, even a beginner who cannot perform by just looking at the score can play the song. However, it is difficult for beginners to easily perform a song having a large number of black key performances among the stored types of songs even if the LED is lit and the key depression is guided. For this reason, the pitch data of the original music is modified and stored in the music data ROM or the like so that it can be played with only the white key.
[0003]
[Problems to be solved by the invention]
However, in the conventional keyboard performance device that stores the corrected pitch data of the original song, not only the excellent artistry and beautiful melody of the original song are lost, but also the original song is desired to be played sometime. It was not possible to satisfy the user's desire.
[0004]
It is an object of the present invention to maintain the excellent artistry and beautiful melody of the original music and to guide the original music that is difficult to play even for beginners who are unskilled in performance.
[0005]
[Means for Solving the Problems]
  The keyboard performance device according to claim 1, first storage means for storing the original music,
Corresponding to the black key in the pitch data group for each transposition amount when the pitch data group for each transposition amount is created by transposing the pitch data group of the original music stored in the first storage means in semitone units. The counting means for counting the number of pitches to be generated, and the black key number data for each transposition amount based on the pitch number corresponding to the black key for each transposition amount counted by the counting means, and using the data as the black key Data arrangement means arranged in order from the smallest number of corresponding pitches, an externally operable operator, a second storage means, and the data arranged by the data arrangement means each time the operator is operated The black key number data for each transposition amount is selected in the order of arrangement, the transposition amount selecting means for storing the transposition amount corresponding to the last selected black key number data in the second storage means, and the automatic performance is started. When reading the pitch data of the original song from the first storage means Together be, has a configuration having a music data output means for outputting the tone pitch data read by transposing by transposition amount stored in the second storage means.
[0006]
  7. The program according to claim 6, wherein when the pitch data group for each transposition amount is created by transposing the pitch data group of the original music stored in the first storage means into a semitone unit, Step of counting the number of pitches corresponding to the black key in each pitch data group, and creating black key number data for each transposition amount based on the pitch number corresponding to the black key for each counted transposition amount The number of black keys for each transposition amount arranged by the arranging step each time the data is arranged in order from the smallest number of pitches corresponding to the black key and the externally operable operator is operated. Selecting the data in the order of arrangement, and storing the transposition amount corresponding to the last selected black key number data in the second storage means; and when the automatic performance is started, the original music from the first storage means While reading the pitch data of And a step of outputting said tone pitch data read by transposing by transposition amount stored in the second storage means.
[0007]
According to the invention described in claim 1 or claim 4, when the pitch data group for each transposition amount is created by transposing the pitch data group of the original music in units of semitones, the pitch for each transposition amount. When the number of pitches corresponding to the black key in the data group is arranged in ascending order, black key number data is created for each transposition amount, and when specific black key number data is selected, the selected black key number data The pitch data of the original music is transposed and output by the transposition amount corresponding to.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of an electronic keyboard instrument as a keyboard playing device according to the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram illustrating a configuration of an electronic keyboard instrument in the embodiment. In the figure, a CPU 1 is connected to a ROM 3, a RAM 4, a music data ROM 5, a switch unit 6, a keyboard unit 7, a guide LED group driving unit 8, and a sound source unit 9 via a system bus 2, and commands between these units. The electronic keyboard instrument is controlled according to the control program.
[0009]
The ROM 3 stores a control program executed by the CPU 1, initial data, and the like. The RAM 4 is a work area of the CPU 1, and as shown in FIG. 2 (1), a transpose area, a maximum set pitch area, and a minimum set pitch area are provided. The RAM 4 is provided with various register, flag, and pointer areas necessary for the CPU 1 to execute the control program. The data for each area will be described later. FIG. 2 (2) shows data (this is referred to as “black key number data”) including the number of black keys for each transpose amount (transposition amount) in the transpose area of FIG. 2 (1). This will be further described in detail.
[0010]
The song data ROM 5 in FIG. 1 stores song data of a plurality of types of original songs, as shown in FIG. Each piece of music data is composed of sequence data including event data and time data. Each event data includes note-on events, pitch data, and velocity data that are sound generation events, note-off events that are mute events, pitch data, and velocity data whose value is “0”. In addition, the event data includes a control event such as a control change, but the description is omitted because it is not particularly related to the present invention.
[0011]
1 is composed of a plurality of switch groups, a song selection switch for selecting one song from a plurality of songs stored in the song data ROM 5, and an original song stored in the song data ROM 5. "Recommendation" for presenting multiple types of transpose data to the performer, lesson switch for detecting the transpose of the song, start switch for starting or stopping the music lesson, and transposing the original song data A switch (which will be described later) and the like are provided.
[0012]
The keyboard unit 7 is composed of a plurality of white keys and a plurality of black keys, and inputs performance data including pitch data, velocity data, and the like to the CPU 1 according to performance. Further, an LED, which is a light emitting means for performance guide, is provided under each key. The guide LED group driving unit 8 turns on or turns off the corresponding LED in accordance with the turn-on command or turn-off command from the CPU 1 and key number data.
The tone generator 9 sends a tone waveform signal to the tone generation circuit 10 in response to tone data and tone generation commands including tone pitch data from the CPU 1, and sends it to the tone generation circuit 10 in response to tone data and a mute command from the CPU 1. Stop the musical sound waveform signal.
[0013]
Next, the operation of the keyboard performance process in the electronic keyboard instrument of FIG. 1 will be described with reference to the flowcharts of FIGS.
FIG. 4 shows a main flow. After predetermined initialization (step A1), music selection processing (step A2), transpose detection processing (step A3), transpose selection processing (step A4), and maximum / minimum pitch setting processing. (Step A5), keyboard processing (Step A6), guide processing (Step A7), and other processing (Step A8) are repeatedly executed.
[0014]
FIG. 5 is a flowchart of the music selection process in the main flow. It is determined whether or not the music selection switch and the numeric keypad indicating the music number are operated (step B1). Store (step B2). Next, a pointer is set to the address of the head data of the song (N) indicated by the N song number (step B3). Then, “0 (transpose amount is zero)” is set in the transpose register key (step B4). Also, the transpose area in FIG. 2A is cleared (step B5). Specifically, the black key number, maximum pitch, and minimum pitch areas in the transpose area shown in FIG. Then, the process returns to the main flow of FIG.
[0015]
6 to 10 are flow charts of the transpose detection process in the main flow. In FIG. 6, it is determined whether or not the lesson switch is turned on (step C1). If not turned on, this flow is terminated. If it is turned on, it is determined whether or not the flag TEF is “0”. (Step C2). TEF is a flag that is set to “1” when the transpose detection of the selected music data is completed. Therefore, if the TEF is already “1”, this flow is terminated and the process returns to the main flow.
[0016]
When TEF is “0”, “0” is set to the pointer n for designating the address of the transpose area in FIG. 2 (2), and the pointer m for designating the transpose amount (transposition amount) in semitones. Is set to "-11" (step C3). That is, the pitch of the music data of the original music is transposed to the lower one by “11 semitones”. For example, the pitch of B4 is transposed to the pitch of C4.
Next, “0” is stored in the register BLK that stores the detected number of black keys, “−11” is stored in the register MAX that stores the detected maximum pitch, and “” is stored in the register MIN that stores the minimum pitch. 138 "is stored (step C4). The pitch is expressed by a numerical value from “0” to “127”, and the semitone unit is “1”. Next, it is determined whether or not the data indicated by the pointer of the selected song (N) is a note-on event (step C5). If it is a note-on event, the pitch of the note-on event is stored in the register PITCH (step C6). Then, the value of m is added to the pitch of PITCH (step C7). That is, the pitch of the original music stored in PITCH is transposed by the value of m (initially -11).
[0017]
Next, it is determined whether or not the pitch stored in PITCH is equal to or higher than the pitch stored in MAX (initially “−11”) (step C8). If the pitch stored in PITCH is equal to or higher than the pitch stored in MAX, the pitch of PITCH is stored in MAX as the current highest pitch (step C9). If the pitch stored in PITCH is lower than the pitch stored in MAX, whether the pitch stored in PITCH is less than or equal to the pitch stored in MIN ("138" at first) Is discriminated (step C10). If the pitch stored in PITCH is less than or equal to the pitch stored in MIN, the pitch of PITCH is stored in MIN as the current minimum pitch (step C11).
[0018]
Next, the pitch stored in PITCH is divided by “12”, and the remainder is stored in register ODD (step C12). Next, in step C13 of FIG. 7, it is determined whether or not the numerical value stored in the ODD is any one of “1”, “3”, “6”, “8”, or “10”. One octave is composed of 12 pitches, and the pitch of C corresponding to the white key (pitch of C major "do") is expressed as a multiple of 12, so the numerical value stored in ODD is one of the above The pitch stored in PITCH is “C #”, “D #”, “F #”, “G #” or “A #”, and the pitch corresponding to the black key It turns out that. Therefore, “1” is added to the value of BLK that stores the number of black keys (step C14).
[0019]
After adding “1” to the value of BLK, or when the numerical value stored in ODD in step C13 is not any of the above values, that is, when the pitch stored in PITCH is the pitch corresponding to the white key Increments the pointer for designating the data address of the song (N) and designates the data at the next address (step C15). Then, it is determined whether or not there is no data at the address designated by the incremented pointer (step C16). If there is data, the process proceeds to step C5 in FIG. 6 and the loop up to step C16 is repeated. That is, this loop is repeated as long as there is song (N) data, and in all pitch data obtained by transposing the pitch data of the original song by the value m, the number of pitches corresponding to the black key, the highest pitch And the lowest pitch is detected.
[0020]
If there is no data at the address designated by the pointer in step C16, the value of m is stored in the area of KEY (0, n) of the transpose area shown in FIG. 2 (2) (step C17). The value of BLK is stored in the area of number (1, n) (step C18), the pitch of MAX is stored in the area of highest pitch (2, n) (step C19), and the lowest pitch (3, n ) Stores the pitch of the MIN (step C20). That is, black key number data corresponding to the transpose amount that is the value of m is created.
Next, the value of n is incremented to specify the next address of the transpose area, and the value of m is incremented to set the transpose amount higher by a semitone (step C21). And it is discriminate | determined whether the value of n exceeded "22" (step C22). That is, it is determined whether or not data storage to all areas of the transpose area has been completed.
When the value of n is “22” or less, that is, when an area to be stored remains in the transpose area, the process proceeds to step C4 in FIG. 6, and the loop up to step C22 in FIG. The number of black keys, the highest pitch, and the lowest pitch when the transpose amount is set higher by a semitone in order are detected.
[0021]
When the value of n exceeds “22” in step C22, as shown in FIG. 2 (2), the number of black keys when the transpose amount is changed from “−11” to “11”, the maximum The pitch and minimum pitch data are stored. That is, black key number data for each transpose amount is created.
In this case, the process proceeds to step C23 in FIG. 8, and the arrangement of the transpose areas is rearranged in ascending order of the number of black keys (1, n). Next, the pointer n is returned to “0” (step C24), and the following loop is repeatedly executed while incrementing the value of n.
That is, it is determined whether or not the pitch of the highest pitch (2, n) in the transpose area is equal to or lower than the highest pitch stored in the register max (step C25). It is determined whether or not the high (3, n) pitch is equal to or higher than the lowest pitch set in advance and stored in the register min (step C26). When the pitch of the highest pitch (2, n) in the transpose area is higher than the preset highest pitch, or the pitch of the lowest pitch (3, n) in the transpose area is higher than the preset lowest pitch If it is low, the data of the transpose amount, the number of black keys, the highest pitch and the lowest pitch stored in (0, n) to (3, n) in the transpose area are deleted (step C27).
That is, black key number data based on a pitch data group having a pitch in a range outside the preset maximum pitch and minimum pitch ranges from the pitch data group for each transpose amount is excluded.
[0022]
In step C25, the pitch of the highest pitch (2, n) in the transpose area is less than or equal to the preset maximum pitch, and in step C26, the pitch of the lowest pitch (3, n) in the transpose area is preset. When the pitch is equal to or higher than the set minimum pitch or after deleting the data in the transpose area in step C27, the value of n is incremented to designate the next address in the transpose area (step C28). Then, it is determined whether or not the incremented value of n exceeds “22” (step C29).
That is, in all of the transpose areas, it is determined whether or not the processing for detecting the presence / absence of transpose data of a type having a pitch in a range outside the preset maximum pitch and minimum pitch range is completed. To do. When the value of n is “22” or less, the loop of Step C25 to Step C29 is repeated.
[0023]
If the value of n exceeds “22”, the value of n is returned to “0” (step C30), and the process proceeds to step C31 of the flow of FIG. The offset pointer k for comparing with the transpose data is set to “1”. Then, it is determined whether or not there is data in the (0, n) to (3, n) areas of the transpose area designated by n (step C32). If the data in the (0, n) to (3, n) area has not been deleted in the process of step C27 in FIG. 8, the data exists in that area.
If there is data, it is determined whether or not the value obtained by adding the value of n and the value of k is equal to or less than “22” (step C33). That is, it is determined whether or not an address area indicated by a value obtained by adding the offset value k to the value n exists in the transpose area. If the added value is “22” or less, it is determined whether or not there is data in the (0, n + k) to (3, n + k) areas of the transpose area (step C34). If there is data, it is determined whether or not the number of black keys stored in (1, n) in the transpose area is the same as the number of black keys stored in (1, n + k) in the transpose area. (Step C35).
[0024]
If the number of black keys in both areas is the same, it is determined whether or not the absolute value of (0, n) in the transpose area is smaller than the absolute value of (0, n + k) in the transpose area (step C36). ). That is, it is determined whether or not the absolute value of the transpose amount of the transpose area designated by n is smaller than the absolute value of the transpose amount of the transpose area designated by n + k. When the absolute value of (0, n) is smaller than the absolute value of (0, n + k), the pitch data in the transpose area specified by n is closer to the pitch data of the original music. In this case, the data of (0, n + k) to (3, n + k) in the transpose area is deleted (step C37).
That is, in the generated black key number data for each transpose amount, when there are two or more black key number data having the same pitch number corresponding to the black key, the transpose amount from the pitch of the original sound is larger. Exclude black key number data.
[0025]
When the absolute value of (0, n) is not smaller than the absolute value of (0, n + k), it is determined whether or not the absolute value of (0, n) is equal to the absolute value of (0, n + k). (Step C38). If they are equal, it is determined whether or not the data (0, n) is negative (step C39). When the data of (0, n) is negative, that is, when the pitch data in the transpose area specified by n is transposed in the negative direction (the direction of the low frequency range) than the pitch data of the original music The data of (0, n) to (3, n) in the transpose area is deleted (step C40). In step C39, the data of (0, n) is not negative, and the pitch data in the transpose area designated by n is transposed in the positive direction (the direction of the high range) relative to the pitch data of the original music. In this case, the data of (0, n + k) to (3, n + k) in the transpose area is deleted in step C37.
[0026]
That is, when there are two black key number data with the same pitch number corresponding to the black key in the generated black key number data for each transpose amount, the pitch of the original sound in the two black key number data is calculated. If the transpose amounts of the keys are equal, the black key number data in which the transpose direction is the bass direction is excluded. This is because transposing in the direction of the treble produces a clearer sound. However, the configuration may be such that the black key number data whose transpose direction is the high pitch direction is excluded according to the player's selection or the like.
[0027]
After deleting the data of the transpose area designated by n + k in step C37, or if the data of (0, n) is not negative in step C39, or in step C34, (0, n + k) to (3 , N + k) or when the number of black keys stored in (1, n) in the transpose area differs from the number of black keys stored in (1, n + k) in the transpose area in step C35. Is incremented by the value of the pointer k (step C41). Then, the process proceeds to step C33 to determine whether or not the value of n + k is “22” or less. If it is “22” or less, the loop up to step C41 is repeated.
[0028]
If there is no data (0, n) to (3, n) in the transpose area in step C32, or if the value of n + k exceeds “22” in step C33, the value of n is incremented. Data of the next address in the transpose area is designated (step C42). At this time, it is determined whether or not the value of n exceeds “22” (step C43). If not, the process proceeds to step C31 to return the value of k to “1”, and the loop up to step C43 is performed. repeat. When the value of n exceeds “22”, that is, when detection of performance candidate data obtained by transposing the pitch data of the original music is completed, “1” is set to the flag TEF (step C44). ), The value of n is returned to “0” (step C45). Then, this flow is ended and the process returns to the main flow.
[0029]
10 and 11 show the transpose selection process flow in the main flow. In FIG. 10, it is determined whether or not the recommendation switch is turned on (step D1). The recommendation switch is a switch for presenting to the performer the performance candidate data stored in the transpose area by the above-described transpose detection process. If this switch is not turned on, this flow is terminated. If this switch is turned on, all the LEDs of the lit keys are turned off (step D2). And it is discriminate | determined whether TEF is "1" (step D3). If the TEF is “0”, the transpose detection process has not yet been completed, and thus this flow ends.
[0030]
When TEF is “1”, there is data in the area (0, n) of the address designated by the pointer n (initially set to “0” in step C45 in FIG. 9) in the transpose area. Whether or not (step D4). If there is no data in the designated area, the value of n is incremented to designate the next address area (step D5). If there is data in the area (0, n) of the address specified by n, the data of the transpose amount stored in the area (0, n) is stored in the register KEY (step D6), and the area (1 , N) stores the number of black key data stored in the register BLK (step D7).
[0031]
Next, the key lighting pattern in a predetermined one octave range (for example, C4 to B4) is changed according to the black key number data stored in the BLK.
That is, it is determined whether or not the number of black keys stored in the BLK is “3” or less (step D8). If it is “3” or less, the LED of the C # key is turned on (step D9). .
If the number of black keys stored in the BLK exceeds “3”, it is determined whether or not the number of black keys is within the range of “4” to “10” (step D10). If so, the LEDs of the C # and D # keys are turned on (step D11).
If the number of black keys stored in the BLK exceeds “10”, it is determined whether or not the number of black keys is within the range of “11” to “30” (step D12). If so, the LEDs of the C #, D #, and G # keys are turned on (step D13).
If the number of black keys stored in the BLK exceeds “30”, it is determined whether or not the number of black keys is within the range of “31” to “50” in step D14 of the flow of FIG. If it is within this range, the LEDs of the keys C #, D #, G #, A # are turned on (step D15).
If the number of black keys stored in the BLK exceeds “50”, the LEDs of the C #, D #, G #, A #, and B # keys are turned on (step D16).
[0032]
After the LED is turned on in any pattern, the value of n is incremented and the next address of the transpose area is designated (step D17). At this time, it is determined whether or not the value of n exceeds “22” (step D18). If it exceeds “22”, the value of n is returned to “0” (step D19). When the value of n is “22” or less or when the value of n is returned to “0”, it is determined whether or not the lesson switch is turned on (step D20). If this switch is not on, the process proceeds to step D1 in FIG. 10 and the above-described processing is repeated.
That is, every time the recommended switch is operated, performance transpose data is presented in order from the smallest number of black keys, and the key lighting pattern is changed according to the number of black keys.
When the lesson switch is turned on in step D20, “0” is set in TEF (step D21), and the process returns to the main flow.
[0033]
FIG. 12 is a flow of the highest and lowest setting process in the main flow. It is determined whether or not a maximum pitch has been input by a numeric key switch or the like (step E1). When the maximum pitch is input, the maximum pitch data is stored in the register max (step E2). Similarly, it is determined whether or not a minimum pitch has been input (step E3), and when input, the minimum pitch data is stored in the register min (step E4). Then, the process returns to the main flow.
[0034]
13 and 14 are flowcharts of the guide process in the main flow. First, in FIG. 13, it is determined whether or not the start switch is turned on (step G1). When this switch is turned on, the flag STF is inverted (step G2). Then, it is determined whether or not the STF value is “1 (performance guide)” (step G3). If the STF value is “0 (performance guide stop)”, the LEDs of all the keys that are lit are turned off (step G4), and this flow is terminated.
[0035]
If the STF is “1”, the data of the first address in the song (N) selected by the number stored in the register N is read (step G5), and the type of the read data is event data. Whether it is data or not is discriminated (step G6). If it is time data, it is a waiting time until the next event data, so a timer is started and this flow is ended.
If the read data type is event data, it is further determined whether or not the event is note-on (step G8). Since this event is the first event data of a song, note-off is impossible and it is a control event such as note-on or control change.
If the note is on, the note data of the event is stored in the LED lighting register LIGHT (step G9). Further, the numerical value of the transpose amount stored in KEY is added to the numerical value of the note data stored in LIGHT (step G10). Then, the key having the key number corresponding to the LIGHT value is turned on (step G11). That is, the performance guide is performed by turning on the key of the pitch that transposes the pitch of the original music.
Thereafter, the next data is read (step G12), and the process proceeds to step G6 to determine the type of the data. If the event data is not note-on in step G8, a process corresponding to the event is performed (step G13), the process proceeds to step G12, and the next data is read.
[0036]
If the start switch is not on in step G1, the process proceeds to step G14 in FIG. 14 to determine whether or not the STF is “1”. When the STF is “1”, that is, when the performance guide is started, it is determined whether or not a predetermined time has passed by a timer interrupt or the like (step G15). If the STF is “0” or if a certain time has not elapsed, this flow is terminated.
If the predetermined time has elapsed, the value of the time data is decremented (step G16). Then, it is determined whether or not the time data value has reached zero (step G17). That is, it is determined whether or not the event data processing start time at the next address of the time data has been reached. If the time data value has not reached zero, this flow is terminated. If it has reached zero, it is determined whether or not there is data at the next address (step G18).
[0037]
If there is next data, the data is read (step G21), and the type of the read data is determined (step G22). If the data is time data, a timer is started (step G23), and this flow ends. If the read data is event data, the type of the event data is determined (step G24). When the event data is note-on, the note data of the event is stored in the LED lighting register LIGHT (step G25). Furthermore, the numerical value of the transpose amount stored in KEY is added to the numerical value of the note data stored in LIGHT (step G26). Then, the key having the key number corresponding to the LIGHT value is turned on (step G27). That is, the performance guide is performed by turning on the key of the pitch that transposes the pitch of the original music.
[0038]
When the event data is note-off, the note data of the event is stored in the LED lighting register LIGHT (step G28). Further, the numerical value of the transpose amount stored in KEY is added to the numerical value of the note data stored in LIGHT (step G29). Then, the key with the key number corresponding to the LIGHT value is turned off (step G30).
If the event data is other events other than note-on and note-off, other processing corresponding to the event is performed (step G31).
[0039]
After the key is turned on in step G27, after the key is turned off in step G30, or after other processing is performed in step 31, the process proceeds to step G18 to determine whether there is data at the next address. . As long as there is data at the next address, the processing corresponding to the data is repeated.
If there is no data at the next address in step G18, “0 (stop playing guide)” is set in the STF (step G19), and the LEDs of all lit keys are turned off (step G20). This flow is terminated and the process returns to the main flow.
[0040]
FIG. 15 is a flowchart of keyboard processing in the main flow. First, key scanning is performed (step F1) to determine whether there is a key change (step F2). If there is no key change, this flow is terminated. If there is a key change, it is determined whether the change is a key depression (ON) or a key release (OFF). If the key is depressed, the key number, that is, the note number is stored in the register NOTE (step F3). Further, the velocity data by the key depression is stored in the register VEL (step F4). Next, the KEY transpose amount is subtracted from the note pitch data (step F5), and a note-on event is created based on the subtracted note pitch data (step F6) and sent to the sound source (step F6). Step F7). That is, the pitch transposed for performance and pressed according to the performance guide is corrected again to the pitch of the original music and sent to the sound source for sound generation.
In this case, the pitch that is pressed may be sent to the sound source without modification. Further, it may be selected in accordance with the player's operation whether to correct the pressed pitch or send it to the sound source as it is.
[0041]
If the key change is a key release in step F2, the key number, that is, the note number is stored in the register NOTE (step F8). Next, the transpose amount of KEY is subtracted from the pitch data of NOTE (step F9), a note-off event is created based on the subtracted pitch data of NOTE (step F10), and a sound source is used for muting. (Step F7).
[0042]
As described above, according to the above embodiment, when the pitch data group for each transpose amount is created by transposing (transposing) the pitch data group of the original music in units of semitones, each transpose amount (transposition) Volume), the number of pitches corresponding to the black key in the pitch data group is arranged in ascending order to create black key number data for each transpose amount, and when specific black key number data is selected Since the pitch data of the original song is transposed and output by the amount of transpose corresponding to the selected black key number data, the original artist's excellent artistry and beautiful melody can be maintained, and even an unskilled beginner can perform It is possible to guide so that an original song having a high degree of difficulty can be easily played.
[0043]
In the above embodiment, the invention of the keyboard performance device has been described. However, as shown in the flowchart, the invention is also established as an invention of a program for keyboard performance processing.
That is, the keyboard performance processing program according to the present invention transposes the pitch data group of the original music stored in the first storage means (corresponding to the music data ROM 5 in FIG. 1 in the embodiment) in semitone units. When the pitch data group for each transposition amount is created, the step of counting the pitch number corresponding to the black key in the pitch data group for each transposition amount and the pitch number corresponding to the counted black key are A step of creating the black key number data for each transposition amount (corresponding to the data of the transpose area in FIG. 2 (2) in the embodiment) arranged in ascending order, and the black key number data for each transposition amount When the specific black key number data is selected by the selection operation, the transposition amount corresponding to the selected black key number data is stored in the second storage means (corresponding to the RAM in FIG. 1 in the embodiment). Steps to remember When the performance is started in response to the operation, the pitch data of the original music selected and read from the first storage means is transposed by the transposition amount stored in the second storage means and output. And execute steps.
Therefore, this keyboard performance processing program can be installed in a general-purpose information device such as a personal computer via a storage medium such as a floppy disk, CD, or magneto-optical disk, or a communication line such as the Internet, to have a keyboard performance function. It becomes possible.
[0044]
【The invention's effect】
According to the present invention, when the pitch data group for each transposition amount is created by transposing the pitch data group of the original music in semitone units, the sound corresponding to the black key in the pitch data group for each transposition amount is created. The black key number data for each transposition amount is created by arranging in descending order, and when the specific black key number data is selected, only the transposition amount corresponding to the selected black key number data is generated. Since the pitch data is transposed and output, it is possible to maintain the excellent artistry and beautiful melody of the original music, and to guide even the inexperienced beginner to easily play the difficult original music. .
[Brief description of the drawings]
FIG. 1 is a block diagram showing a system configuration of an embodiment of an electronic keyboard instrument as a keyboard playing device of the present invention.
FIG. 2 is a diagram showing a data configuration in a RAM in FIG. 1;
FIG. 3 is a view showing song data stored in a song data ROM in FIG. 1;
4 is a main flowchart of the CPU in FIG. 1. FIG.
FIG. 5 is a flowchart of music selection processing in FIG. 4;
6 is a flowchart of transpose detection processing in FIG. 4;
FIG. 7 is a flowchart of transpose detection processing subsequent to FIG. 6;
FIG. 8 is a flowchart of transpose detection processing following FIG.
FIG. 9 is a flowchart of transpose detection processing following FIG. 8;
FIG. 10 is a flowchart of transpose selection processing in FIG. 4;
FIG. 11 is a flowchart of transpose selection processing following FIG. 10;
12 is a flowchart of maximum / minimum pitch setting processing in FIG. 4;
13 is a flowchart of guide processing in FIG. 4;
FIG. 14 is a flowchart of guide processing following FIG. 13;
FIG. 15 is a flowchart of keyboard processing in FIG. 4;
[Explanation of symbols]
1 CPU
3 ROM
4 RAM
5 song data ROM
6 Switch part
7 Keyboard
8 Guide LED group drive
9 Sound source
10 Pronunciation circuit

Claims (9)

First storage means for storing the original music;
Corresponding to the black key in the pitch data group for each transposition amount when the pitch data group for each transposition amount is created by transposing the pitch data group of the original music stored in the first storage means in semitone units. Counting means for counting the number of pitches to be played,
Based on the number of pitches corresponding to the black key for each transposition amount counted by the counting means, black key number data for each transposition amount is created, and the data is arranged in order from the smallest number of pitches corresponding to the black key. Data array means;
An externally operable controller,
A second storage means;
Each time the manipulator is operated, the black key number data for each transposition amount arranged by the data arrangement means is selected in the order of arrangement, and the transposition amount corresponding to the last selected black key number data is selected. Transposition amount selection means to be stored in the storage means,
When the automatic performance is started, the pitch data of the original music is read from the first storage means, and the read pitch data is transposed by the transposition amount stored in the second storage means. Song data output means for outputting;
A keyboard playing device having The data arrangement means includes black key number data based on a pitch data group having pitches in a pitch range that is out of a preset maximum pitch range and minimum pitch range among pitch data groups for each transposition amount. 2. The keyboard performance device according to claim 1, wherein the keyboard performance device is excluded. When there are two or more black key number data with the same pitch number corresponding to the black key in the generated black key number data for each transposition amount, the data arrangement means determines the transposition amount from the pitch of the original sound. 3. The keyboard playing device according to claim 1, wherein larger black key number data is excluded. When there are two black key number data with the same pitch number corresponding to the black key in the generated black key number data for each transposition amount, the data arrangement means creates the original sound in the two black key number data. 4. The keyboard performance apparatus according to claim 3, wherein when the transposition amount from the pitch is equal, the black key number data in which the transposition direction is either the high tone direction or the low tone direction is excluded. A plurality of light emitting means provided for each key of the keyboard;
Lighting control means for lighting the light emitting means;
When specific black key number data is selected by the operator from the black key number data for each transposition amount, the lighting control means is controlled according to the number of black keys in the selected black key number data. A lighting pattern indicating means for instructing a lighting pattern of the light emitting means;
The keyboard playing device according to claim 1, further comprising: On the computer,
Corresponds to the black key in the pitch data group for each transposition amount when the pitch data group of the original music stored in the first storage means is transposed in semitones to create the pitch data group for each transposition amount Counting the number of pitches to play,
Creating black key number data for each transposition amount based on the counted pitch number corresponding to the black key for each transposition amount, and arranging the data in ascending order of the pitch number corresponding to the black key;
Each time an externally operable controller is operated, the black key number data for each transposition amount arranged in the arranging step is selected in the order of arrangement, and the transposition amount corresponding to the last selected black key number data is selected. Storing in the second storage means;
When the automatic performance is started, the pitch data of the original music is read from the first storage means, and the read pitch data is transposed by the transposition amount stored in the second storage means. Output step;
A keyboard performance processing program that executes After executing the step of arranging in order from the lowest pitch corresponding to the black key,
And a step of excluding black key number data based on a pitch data group having a pitch outside the range of the preset maximum pitch and minimum pitch among the pitch data group for each transposition amount;
The program for keyboard performance processing according to claim 6, wherein: After executing the step of arranging in order from the smallest pitch corresponding to the black key,
Further, in the created black key number data for each transposition amount, when there are two or more black key number data having the same pitch number corresponding to the black key, the number of black keys having a larger transposition amount from the pitch of the original sound. A step of excluding data,
A step of excluding black key number data in which the transposition direction is the high pitch direction or the low pitch direction when the transposition amount from the pitch of the original sound is equal in the two systems of black key number data;
The program for keyboard performance processing according to claim 6, wherein: After executing the step of storing the transposition amount corresponding to the last selected black key number data in the second storage means, each key of the keyboard is provided according to the number of black keys in the selected black key number data. Instructing the lighting pattern of the plurality of issuing means
7. The keyboard performance processing program according to claim 6, further executed.

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