JP2010079165A - Tone designation device, electronic musical instrument and program for tone designation processing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To assign a desired tone in a desired key region with a simple operation, when the tone used in a dual function is set as the tone in a split function, as it is. <P>SOLUTION: When the split function is selected from a dual function, two tones stored to registers TONE1 and TONE2 and used in the dual function time are transferred to registers UPPER and LOWER, and thereby, they are assigned to an upper key region and a lower key region respectively. Then, the upper region and the lower region of a keyboard are indicated, and when the indicated split position is different from the split position stored in a register SPLIT beforehand, the stored split position is changed to the indicated split position. When the indicated split position is the same with the stored position, the tone assigned in the upper key region, which is stored in the register UPPER is exchanged with the tone assigned in the lower key region. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a tone color designation device, an electronic musical instrument, and a tone color designation processing program.

Conventionally, functions such as split and dual have been known for producing a plurality of different tone musical tones with a single instrument. In the split, the keyboard of the electronic musical instrument is divided into a plurality of key ranges, and a different tone color is assigned to each key range. Dual means that multiple types of musical tones are played simultaneously by operating one key on the keyboard.
In recent years, electronic musical instruments having both the split and dual functions have been proposed. Moreover, a configuration has been proposed in which a dual function can be set from a split function without providing a dedicated switch.
For example, Patent Document 1 has a configuration in which a musical tone having a tone color assigned to each of two key ranges is generated in response to a key depression by setting a split point in the split function as the lowest tone key. It is disclosed.

JP 2003-66960 A

As described above, it is possible to set the split function to the dual function, but in the opposite case, it is naturally desired to set the dual function to the split function. This can be realized by assigning each timbre used in the dual function to the divided key range.
However, the problem here is which timbre is assigned to which key range. Naturally, once a timbre is assigned to each key range, and the user does not like it, it is necessary to change the assigned timbre or replace it with a timbre assigned to another range. Such an operation is very troublesome, and it is necessary to provide a dedicated switch for this purpose.

  An object of the present invention is to make it possible to assign a desired timbre to a desired key range by a simple operation when the timbre used in the dual function is directly set as the timbre of the split function.

  In order to achieve the above object, the present invention specifies a keyboard, function selection means for selecting one of a split function and a dual function, and a division position for dividing the keyboard into an upper key range and a lower key range. Corresponding to the key depression of the key included in the upper key range of the keyboard divided at the division position stored in the division position storage means, the division position storage means for storing the division position, Corresponds to the first register that stores timbre data that specifies the timbre of the musical tone to be sounded, and the key depression of the key included in the lower key range of the keyboard divided at the division position stored in the division position storage means A second register for storing timbre data for designating the tone color of the musical tone to be generated, and timbre data for designating the tone color of the musical tone to be generated in response to the key depression regardless of the key range of the keyboard Is stored in the third and fourth records. A first determination unit that determines that the split function is selected from the dual function by the function selection unit, and the first determination unit after determining the selection to the split function by the first determination unit. The first transfer means for transferring the timbre data stored in the third and fourth registers to the second register, and the division position designation means after the transfer of the timbre data by the first transfer means Second discriminating means for discriminating whether or not the divided position is the same as the division position stored in the division position storing means, and the first and second when the second discriminating means discriminates the same. If the second discriminating means and the exchanging means for exchanging the contents of the register are determined not to be the same, the division position stored in the division position storing means is changed to the division position designation unit. Characterized in that it has a changing means for changing to the specified division position and a.

  Further, it is preferable that the division position designation means designates a position of a key pressed by the keyboard as the division position.

  Further, the timbre setting device further includes third determining means for determining that the dual function is selected from the split function by the function selecting means, and after determining the selection to the dual function by the third determining means. And second transfer means for transferring the timbre data stored in the first and second registers to the third and fourth registers.

  According to the present invention, if the split function is selected by the timbre designating device according to claim 1, key depression detecting means for detecting depression of a key on the keyboard, and the function selection means, the key depression is selected. It is determined whether the key detected by the detecting means is included in the upper key range or the lower key range, and if it is determined that the key is included in the upper key range, the key pressed If the sound source is instructed to generate a musical tone based on the pitch corresponding to the tone and the tone color indicated by the tone color data stored in the first register, and if it is determined that the tone is included in the lower key range, A first sound generation instruction means for instructing the sound source to generate a musical tone based on a pitch corresponding to the key that has been keyed and a timbre indicated by the timbre data stored in the second register; and by the function selection means When the dual function is selected Is a musical tone based on the tone corresponding to the key pressed and the tone color indicated by the tone data stored in the third register, and the pitch corresponding to the key pressed and the third And first sound generation instruction means for simultaneously instructing the sound source to generate a musical tone based on the timbre indicated by the timbre data stored in the register.

  Further, the present invention provides a keyboard, function selection means for selecting one of the split function and the dual function, and a division position designation means for designating a division position for dividing the keyboard into an upper key range and a lower key range. A timbre of a musical tone that is generated in response to a key depression of a key included in the upper key range of the keyboard divided at the division position stored in the division position storage means; A musical tone generated in response to a key depression of a key included in a lower key range of a keyboard divided at a division position stored in the division position storage means; A second register for storing timbre data for designating the timbre of the sound, and a third register for storing timbre data for designating the timbre of the musical tone generated in response to the key depression regardless of the key range of the keyboard. And a fourth register In the computer applied to the color setting device, a first determination step for determining that the split function is selected from the dual function by the function selection means, and the selection to the split function is determined by the first determination step. Thereafter, a first transfer step of transferring the timbre data stored in the third and fourth registers to the first and second registers, and after the transfer of the timbre data, the division position specifying means A second determination step for determining whether or not the designated division position is the same as the division position stored in the division position storage means, and the first and the second when the second division step determines that the division position is the same. 2 is stored in the division position storage means when it is determined that the register is not the same in the replacement step for replacing the contents of the two registers and the second determination step. And it is divided position, characterized in that to execute a changing step of changing to the specified division position, the by the division location designation means.

  In the present invention, when the split function is selected from the dual functions, the two timbres used in the dual function are assigned to the upper key range and the lower key range of the keyboard. After this, the division position of the upper key range and the lower key range of the keyboard is designated. If the designated division position is different from the previously stored division position, the stored division position is designated. Change to the split position. Here, when the designated division position is the same as the stored division position, the timbre assigned to the upper key range and the timbre assigned to the lower key range are switched. As a result, the timbres assigned to the upper key range and the lower key range can be exchanged by a simple operation of designating the same division position as the division position designated in advance, and a dedicated switch or the like is not necessary.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram of an electronic musical instrument to which the timbre setting device of the present invention is applied.
In the figure, a CPU 1 controls the processing operation of the entire electronic musical instrument based on a program stored in a program ROM 2. The program ROM 2 also stores a plurality of types of tone color data. The work RAM 3 temporarily stores data used for the processing of the CPU 1, and a register group and a flag group, which will be described later, are also configured using a part of this area.
The SW unit 4 includes a switch group for designating the tone color of the musical sound to be generated. This timbre switch group has an independent switch corresponding to each timbre data stored in the program ROM 2 described above. Furthermore, a function selection switch for selecting any of normal, split, and dual functions, a setting switch for switching between a setting mode for selecting these functions and setting a division position, and a performance mode for performing in the selected mode, etc. Have
The keyboard 5 is used to specify the tone generation / mute and the pitch of the musical tone. The tone generator unit 6 generates a musical tone corresponding to the pitch and tone color sent from the CPU 1 and supplies it to the tone generation unit 7 to generate the tone. It is something to be made.
On the other hand, the display unit 8 displays timbre names assigned to the keyboard and other parameters necessary for performance.

FIG. 2 is a main flowchart showing the operation of the CPU 1 of FIG.
First, when the power is turned on, the CPU 1 is set to an initial state, a default value is set to a register group configured in the work RAM 3, and an initialization process is performed to set a flag group to an initial state (step S1). . Subsequently, in the SW process, a process based on the operation of the switch operated in the SW unit 4 is performed (step S2). Then, a process based on key depression / release of the keyboard 5 is performed in the keyboard process (step S3), and a process of displaying on the display unit 8 is performed in the display process (step S4). Thereafter, other processing necessary for the electronic musical instrument is performed (step S5), and the process returns to step 2 again. This series of processing is repeated until the power is turned off.

FIG. 3 is a flowchart showing details of the initialization process of FIG.
First, the flags SF, MF, FDF and UPF are set to “0” (step S10). Here, in the flag SF, “1” represents the setting mode, and “0” represents the performance mode. The flag MF is a flag indicating a function. “0” indicates a normal function, “1” indicates a split function, and “2” indicates a dual function.
The flag FDF is a flag that becomes “1” when the dual function is shifted to the split function. The flag UPF is a flag that is “1” when a timbre is assigned to the upper key range of the keyboard 5.
Subsequently, timbre data representing a predetermined timbre is stored in the registers UPPER, LOWER, TONE1, and TONE2 (step S11). The registers UPPER and LOWER store timbre data to be assigned to the upper and lower key ranges of the keyboard 5, and are used in the split function. The registers TONE1 and TONE2 store timbre data used in the dual function.
Then, other necessary initialization processing is executed, and this processing is terminated (step S12).

FIG. 4 is a flowchart showing details of the switch processing of FIG.
First, the setting switch process related to the operation of the setting switch (step S20), the function switch process related to the operation of the function switch (step S21), the timbre switch process related to the operation of the timbre switch (step S22), and the SW section 4 Other switch processing (step S23) related to operation of other included switches is executed in this order.

FIG. 5 is a flowchart showing details of the setting switch process of FIG.
First, it is determined whether or not the setting switch has been turned on (step S24). If it is determined that the on-operation is not performed, the process of this flow is terminated without doing anything. If it is determined that the on-operation has been made, the process proceeds to step S25, the flag SF is inverted, and the process of this flow is terminated.
Thus, every time the setting switch is turned on, the flag SF is inverted, and the setting mode and the performance mode are alternately designated.

FIG. 6 is a flowchart showing details of the mode switch process of FIG.
First, it is determined whether or not the flag SF is “1” (step S29). If the flag SF is not “1”, that is, if it is the performance mode, the processing of this flow is terminated without doing anything. If “1”, that is, the setting mode, the process proceeds to step S30. As a result, the following processing is executed only in the setting mode.

  In step S30, it is determined whether or not the function switch has been operated. If it is determined that the operation is not performed here, the process of this flow is terminated. If it is determined that it is operated, the process proceeds to step S31, and the flag FDF is set to “0”.

  Subsequently, it is determined whether or not the normal function is obtained by operating this function switch (step S32). The normal function is a function in which one tone color is assigned to the entire key range of the keyboard 5 and a musical tone having the assigned tone color is generated in response to a key depression of any key. If it is determined that the normal function has been reached, the flag MF is set to “0” representing the normal function (step S33), and the process of this flow is terminated.

  If it is determined that the function is not the normal function, it is determined whether or not the function has shifted to the split function (step S34). If it is determined that the function is a split function, the flag MF is set to “1” indicating the split function, and the flag UPF is set to “0” indicating that no timbre is assigned to the upper key range (step). S35).

  Subsequently, the process proceeds to step S36 to determine whether or not the current split function is changed from the dual function (step S36). Here, if the function other than the dual function such as the normal function is changed to the current split function, the process of this flow is terminated. On the other hand, if the function is switched from the dual function to the split function, the timbre data stored in the register TONE1 is transferred to the register UPPER, and the timbre data stored in the register TONE2 is transferred to the register LOWER (step S37). Thereafter, the flag FDF is set to “1” indicating the transition from the dual function to the split function (step S38), and the process of this flow is ended.

  As described above, when the dual function is switched to the split function, the tone data of the registers TONE1 and TONE2 used in the dual function are transferred to the registers UPPER and LOWER, and are assigned to the upper and lower key ranges in the split function. Used.

Returning to step S34 again, if it is determined that the function is not the split function, the process proceeds to step S39, where it is determined whether or not the function is shifted to the dual function.
If it is determined that the function is not a dual function, the process of this flow is terminated. On the other hand, if it is determined that the function is a dual function, the flag MF is set to “2” indicating the dual function, and the flag UPF is set to “0” indicating that no timbre is assigned to the upper key range (step). S40).

  Subsequently, the process proceeds to step S41, and it is determined whether or not the current dual function is changed from the split function (step S41). Here, if the function other than the split function such as the normal function is changed to the current dual function, the process of this flow is terminated. On the other hand, if the split function is switched to the dual function, the timbre data stored in the register UPPER is transferred to the register TONE1, and the timbre data stored in the register LOWER is transferred to the register TONE2 (step S42). The process of this flow is terminated.

  As described above, when the split function is switched to the dual function, the tone data of the registers UPPER and LOWER used at the time of the split function is transferred to the registers TONE1 and TONE2, and the two functions generated simultaneously by one key press in the dual function. It is used as the tone of each musical tone.

FIG. 7 is a flowchart showing details of the timbre switch process of FIG.
First, it is determined whether or not any timbre switch is turned on (step S50). If it is determined that the ON operation has not been performed, the process of this flow is terminated.
If it is determined that the ON operation has been performed, the state of the flag MF is determined (step S51). If the flag MF is "0", that is, the normal function, tone color data indicating the tone color designated by the tone color switch is stored in the register TONE 1 (step S52), and the process of this flow is terminated. Thereby, the tone color of the musical tone generated in the normal function is designated.

  On the other hand, if the flag MF is “1”, that is, the split function, it is determined whether or not the flag UPF is “0” (step S53). When this flag UPF is “0”, the timbre to be assigned to the upper key range of the keyboard 5 is in a state that can be stored, and in step S54, the timbre indicating the timbre specified by this timbre switch in the register UPPER. After the data is stored, the flag UPF is set to “0” (step S55), and the processing of this flow is terminated.

  If this flag UPF is “1”, the tone color to be assigned to the upper key range of the keyboard 5 has already been stored, and in step S56, the tone color designated by this tone switch in the register LOWER. Is stored, and then the flag UPF is set to "1" (step S57), and the processing of this flow is terminated.

  In this way, if the split function is used, the timbre specified by the timbre switch is stored in the registers UPPER and LOWER, so that the timbre is assigned to each of the upper and lower key ranges of the keyboard 5.

  Returning to step S51 again, if the flag MF is “2”, that is, if it is a dual function, it is subsequently determined whether or not the flag UPF is “0” (step S58). When this flag UPF is “0”, it indicates that the tone color data can be stored in one register TONE1, and in step S59, the tone color indicating the tone color specified by this tone switch in register TONE1. After the data is stored, the flag UPF is set to “1” (step S60), and the processing of this flow is terminated.

  When the flag UPF is “1”, it indicates that the tone color data is already stored in the register TONE1, and in step S61, the tone color designated by the tone switch is indicated in the register TONE2. The timbre data is stored, and thereafter the flag UPF is set to “0” (step S62), and the processing of this flow is terminated.

  In this way, if it is a dual function, the timbre specified by the timbre switch is stored in the registers TONE1 and TONE2, thereby determining the timbre of each of the two musical sounds that are simultaneously generated by one key press. Become.

8 and 9 are flowcharts showing details of the keyboard processing of FIG.
First, the keyboard 5 is scanned (step S70), and the state of the key is determined (step S71). Here, if there is no change in any of the keys, the process of this flow is terminated. If any key is turned from on to off, that is, when the key is released, the key number of the released key is stored in the register NOTE (step S72), and the key number stored in the register NOTE is stored. The sound source unit 6 is instructed to mute the musical tone of the pitch corresponding to (step S73), and the processing of this flow is terminated.

  On the other hand, if any key is changed from OFF to ON, that is, if a key is pressed, the key number pressed is stored in the register NOTE (step S74). Subsequently, it is determined whether or not both the flags SF and MF are “1”, that is, the setting mode and the split function (step S75). Only when the flags SF and MF are both “1”, the process proceeds to step S76, and whether the key number of the key corresponding to the division position stored in the register SPLIT matches the keyboard number stored in the register NOTE. Determine whether or not.

  If it is determined that they do not match, that is, if a key different from the key corresponding to the divided position is pressed, it is determined that this is an operation for changing the divided position, and the key stored in the register NOTE The number is stored in the register SPLIT, and the process of this flow is terminated (step S77). Thereby, the division position of the keyboard 5 is changed to a position corresponding to the depressed key.

  On the other hand, if it is determined that they match, that is, if the key corresponding to the division position is pressed, the process proceeds to step S78 to determine whether or not the flag FDF is “1”. If the flag FDF is “1”, this means that this is a split function and this split function has shifted from the dual function. Then, the process proceeds to step S79, where the stored contents of the register UPPER and the register LOWER are exchanged. Finish the flow process. Conversely, if the flag FDF is not “1”, the processing of this flow is terminated without doing anything.

  Thus, when the dual function is switched to the split function, the timbre data of the two tones used in the dual function as described above are transferred to the registers UPPER and LOWER and assigned to the upper key range and the lower key range, respectively. The timbre assigned to the upper key range and the lower key range can be switched each time the key corresponding to the subsequent division position is pressed. If a key different from the division position is pressed, the division position is changed.

  Returning to step S75 again, if it is determined that both the flags SF and MF are not "1", the process proceeds to step S80 in FIG. 9, where both the flags SF and MF are "0", that is, in the performance mode and normal. Determine whether the function is set. If it is determined here that the performance mode and the normal function are set, the tone generator 6 is instructed to generate the tone corresponding to the keyboard number of the register NOTE and the tone of the tone of the register TONE1, and the processing of this flow is performed. Is finished (step S81). In this way, if the performance mode is the normal function, a single tone color tone is produced even if any key in the entire key range is pressed.

  If it is determined in step S80 that both the flags SF and MF are not "0", the flag SF is "0" and the flag MF is "1", that is, the performance mode and the split function are set. It is determined whether or not there is (step S82). If it is determined that the performance mode is set and the split function is set, the process proceeds to step S83, and the key number of the depressed key stored in the register NOTE is stored in the register SPLIT. It is determined whether it is smaller than the key number of the key corresponding to the division position. If it is determined that the value is small, this means that a key belonging to the lower key range has been pressed, and the tone generator corresponding to the tone corresponding to the keyboard number of the register NOTE and the tone of the register LOWER is generated. 6 is instructed (step S84). On the other hand, if it is determined that they are the same or larger, this means that the key belonging to the upper key range has been pressed, and the tone corresponding to the keyboard number of this register NOTE and the tone of the tone of the register UPPER are pronounced. The sound source unit 6 is instructed (step S85). After this step S84 or 85, the process of this flow is terminated.

  As described above, in the performance mode and the split function, the tone color of the generated musical tone differs depending on whether the depressed key belongs to the upper key range or the lower key range.

  On the other hand, if it is determined in step S82 that the flag SF is “0” and the flag MF is not “1”, the process proceeds to step S86, where the flag SF is “0” and the flag MF is “2”, that is, in the performance mode. It is also determined whether or not the dual function is set. If it is determined that this is not the case, the process of this flow is terminated. On the contrary, if it is determined that the performance mode and the dual function are set, the tone corresponding to the pitch of the register NOTE and the tone of the tone of the register TONE1 and the tone of the tone of the register TONE1 with the same tone are generated. The unit 6 is instructed at the same time, and the processing of this flow is terminated (steps S87 and 88). In this way, in the performance mode and dual function, two musical tones having different timbres are simultaneously generated with a single key press.

FIG. 10 is a flowchart showing details of the display process of FIG.
First, the state of the flag MF is determined (step S90). If the flag MF is “0”, that is, the normal function is set, the timbre name corresponding to the timbre data stored in the register TONE1 is displayed on the display unit 8 (step S91). If the flag MF is “1”, that is, if the split function is set, the timbre name corresponding to the timbre data stored in the registers UPPER and LOWER is displayed on the display unit 8 (step S92). If the flag MF is “2”, that is, the dual function is set, the timbre name corresponding to the timbre data stored in the registers TONE1 and TONE2 is displayed on the display unit 8 (step S93). After any of the processes in steps S91 to S93, the process of this flow is terminated.

  Thus, the timbre name used according to the set function is displayed on the display unit 8.

  As described above, according to the present embodiment, when the split function is selected from the dual function, the two timbres used in the dual function are respectively assigned to the upper key range and the lower key range of the keyboard. After this, the division position of the upper key range and the lower key range of the keyboard is designated. If the designated division position is different from the previously stored division position, the stored division position is designated. Change to the split position. Here, when the designated division position is the same as the stored division position, the timbre assigned to the upper key range and the timbre assigned to the lower key range are switched. As a result, the timbres assigned to the upper key range and the lower key range can be exchanged by a simple operation of designating the same division position as the division position designated in advance, and a dedicated switch or the like is not necessary.

FIG. 1 is a block diagram of an electronic musical instrument to which the timbre setting device of the present invention is applied. FIG. 2 is a main flowchart showing the operation of the CPU 1 of FIG. FIG. 3 is a flowchart showing details of the initialization process of FIG. FIG. 4 is a part of a detailed flowchart of the SW process of FIG. FIG. 5 is a flowchart showing details of the setting switch process of FIG. FIG. 6 is a flowchart showing details of the function switch processing of FIG. FIG. 7 is a flowchart showing details of the timbre switch process of FIG. FIG. 8 is a part of a flowchart showing details of the keyboard processing of FIG. FIG. 9 is a flowchart showing details of the keyboard process following FIG. FIG. 10 is a flowchart showing details of the display process of FIG.

Explanation of symbols

1 CPU
2 Program ROM
3 Work RAM
4 SW section 5 Keyboard 6 Sound source section 7 Sound generation section 8 Display section

Claims (5)

The keyboard,
A function selection means for selecting one of a split function and a dual function;
A division position designation means for designating a division position for dividing the keyboard into an upper key range and a lower key range;
Division position storage means for storing the division position;
A first register for storing timbre data for designating the tone color of a musical tone to be generated in response to a key depression included in the upper key range of the keyboard divided at the division position stored in the division position storage means When,
A second register for storing timbre data designating a tone color of a musical tone that is generated in response to a key depression included in the lower key range of the keyboard divided at the division position stored in the division position storage means When,
Third and fourth registers in which timbre data for designating the timbre of a musical tone that is generated in response to a key depression is stored regardless of the key range of the keyboard;
First determining means for determining that the split function is selected from the dual function by the function selecting means;
A first transfer means for transferring the timbre data stored in the third and fourth registers to the first and second registers after the selection of the split function is determined by the first determination means; ,
A second discriminating means for discriminating whether or not the division position designated by the division position designation means is the same as the division position stored in the division position storage means after the timbre data is transferred by the first transfer means; ,
Replacing means for replacing the contents of the first and second registers when the second determining means determines that they are the same;
Changing means for changing the division position stored in the division position storage means to the division position designated by the division position designation means when it is judged that they are not the same by the second discrimination means;
A timbre designating device.   2. The timbre designating apparatus according to claim 1, wherein the division position designation means designates a position of a key pressed by the keyboard as the division position. The timbre setting device further includes:
Third determining means for determining that the dual function is selected from the split function by the function selecting means;
A second transfer means for transferring the timbre data stored in the first and second registers to the third and fourth registers after the selection of the dual function is determined by the third determination means; ,
The timbre setting device according to claim 1, further comprising: A timbre designating device according to claim 1;
A key depression detecting means for detecting a key depression of the key on the keyboard;
When the split function is selected by the function selection means, it is determined whether the key detected by the key press detection means is included in the upper key range or the lower key range, and the upper key If it is determined that it is included in the range, the sound source is instructed to generate a musical tone based on the pitch corresponding to the pressed key and the timbre indicated by the timbre data stored in the first register. In addition, if it is determined that the key is included in the lower key range, a musical tone is generated based on the pitch corresponding to the depressed key and the tone color indicated by the tone color data stored in the second register. First pronunciation instruction means for instructing the sound source;
When the dual function is selected by the function selecting means, the musical tone based on the tone corresponding to the depressed key and the tone color indicated by the tone color data stored in the third register, and the pressed tone First sound generation instruction means for simultaneously instructing the sound source to generate a musical tone based on a pitch corresponding to a key that has been keyed and a timbre indicated by timbre data stored in the third register;
Electronic musical instrument with A keyboard, function selection means for selecting one of the split function and the dual function, a split position specifying means for specifying a split position for dividing the keyboard into an upper key range and a lower key range, and the split position Timbre data for designating a tone color of a musical tone to be generated in response to a key depression of a key included in the upper key range of the keyboard divided at the division position stored in the division position storage unit And a tone color of a musical tone to be generated corresponding to a key depression of a key included in a lower key range of the keyboard divided at the division position stored in the division position storage means A second register for storing timbre data, and third and fourth registers for storing timbre data for designating the timbre of a musical tone to be generated in response to a key depression regardless of the key range of the keyboard. And applied to a tone setting device having On a computer that is,
A first determination step of determining that a split function is selected from a dual function by the function selection means;
A first transfer step of transferring the timbre data stored in the third and fourth registers to the first and second registers after determining the selection of the split function in the first determination step; ,
A second determination step for determining whether the division position designated by the division position designation means is the same as the division position stored in the division position storage means after the transfer of the timbre data;
An exchanging step of exchanging the contents of the first and second registers when it is discriminated by the second discriminating step;
A change step of changing the division position stored in the division position storage means to the division position designated by the division position designation means when it is judged that they are not the same in the second discrimination step;
Tone specification processing program to execute.

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