JP3602365B2 - Electronic musical instrument - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electronic musical instrument that can provide a feeling of playing an acoustic musical instrument.
[0002]
[Prior art]
In current electronic musical instruments, musical information is given to a sound source using a keyboard or a sequencer, and a musical tone is generated from the sound source according to the information.
[0003]
[Problems to be solved by the invention]
On the other hand, there are various types of keyboards, and even if the keyboard is played in the same manner, the performance information such as MIDI information may vary depending on the velocity, the time from key-on to key-off, and the like. That is, if the performance of one instrument is performed in the performance of another instrument, the pitch of the other instrument may be different from the pitch obtained in the case of an acoustic instrument.
[0004]
For example, when the tone of a musical instrument that produces sound only after the keyboard is fully depressed, such as a harpsichord, is played, and the keyboard of an electronic musical instrument is played, the keyboard can be played without depressing the keyboard like a staccato. In other words, where the sounding time should be longer in order to play the keyboard by pushing it all the way down, the sounding time will be shorter if the key is played with a staccato keyboard. As a result, the sound disappears before the time when the instrument should be played (the sound is cut off), giving the player a sense of unnaturalness and discomfort.
[0005]
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an electronic musical instrument capable of setting a feeling when playing to a state close to an acoustic musical instrument.
[0006]
[Means for Solving the Problems]
The configuration of the electronic musical instrument of the present invention according to claim 1 is
Tone selection means for selecting a tone;
Limit value storage means for storing a limit value set in at least one of the performance information parameters;
Regarding predetermined parameters determined for each timbre selected by the timbre selection means,Detecting means for detecting the value of the parameter included in the performance information;
Comparing means for comparing the detected value detected by the detecting means with the limit value of the same parameter stored in the limit value storing means;
Changing means for changing and outputting the value of the parameter or the value of another parameter when the detected value does not satisfy the limit value as a result of the comparison by the comparing means;
Is a basic feature.
[0007]
In the above configuration, the parameters detected by the detecting means are determined for each timbre selected by the timbre selecting means, and the comparing means detects the detected value detected by the detecting means and the same parameter stored in the limit value storing means. Is compared with the limit value. Then, the result of the comparison is input to the changing means, and when the detected value does not satisfy the limit value, the value of the parameter or the value of another parameter is changed and output by the changing means. become.
[0008]
One example in which such a configuration is effective is an electronic keyboard instrument that can play the tone of a harpsichord. In the electronic keyboard instrument, when the player plays a staccato key on a keyboard such as a piano, the sounding time is shortened (the sound is cut off), which gives the player a sense of unnaturalness and discomfort. However, with the above configuration,For example, when the tone of the harpsichord is selected, if the detected gate time or the interval between key-on and key-off does not reach these values set as the limit value, the gate time is changed to the gate time set as the limit value, or key-on is performed. The key-off is output with a delay set to the limit value from the time, and while selecting the tone of the harpsichord, the sound is cut off as if playing with a staccato on a keyboard like a piano, giving a sense of incongruity No more.
[0009]
Another example is a let-off function for a piano (particularly a grand piano). That is, in a grand piano or the like, when played very weakly, no sound is produced due to the let-off function. However, in the case of a general electronic musical instrument, there is a problem that a sound is produced even in such a case. By providing the above configuration in an electronic musical instrument, in such a case, the detected velocity value does not reach the limit value, and the changing means changes the velocity value of the musical tone to be generated to a value close to 0 to 0. Or the key-on is not output, and such a let-off function can be realized.
[0010]
As still another example, control that shifts the octave of a musical instrument with a narrow key range can be considered. That is, the piano has a wide range from A0 to C8, but there is no instrument that can output such a wide range in most other musical instruments. As described above, in the case of an electronic musical instrument configuration capable of outputting a tone of a musical instrument with a narrow key range, a target parameter is set as a key number, and when a key exceeding a key range designated for each tone is pressed ( That is, control is performed such that the octave is shifted so as to be within the designated key range (ie, so as to be within the range satisfying the limit value) when a key number outside the limit value is detected (ie, when a key number outside the limit value is detected). This eliminates the output of musical sounds having unnatural key numbers that cannot be achieved with an acoustic musical instrument, and allows the musical instrument to output musical sounds in a normal key range.
[0015]
Furthermore, in an electronic musical instrument equipped with a dual function that can play two or more tones at the same time, in a configuration that can be played with the tone of the organ included, the volume of the organ sounds small depending on the velocity, and conversely, It sounds loud. In other words, when the tone of the organ is selected in the electronic musical instrument, the keyboard has only a trigger-like function, so that the tone cannot be controlled by touch. However, in the electronic musical instrument as described above, when a tone whose volume is changed by touch (for example, a piano) and a function capable of simultaneously playing a tone such as the organ are selected, the volume of the organ does not change. Therefore, if played strongly, the volume of the tone of the organ will be too low, and if played weakly, the volume of the tone of the organ will be too large. For this reason, in a configuration where the tone can be selected, when the tone of the organ is selected, the target parameter is set as velocity, and the volume changes with the velocity.When the organ alone is selected, the velocity value is set in a narrow range. When control and dual function settings are made and other sounds that change volume with touch are also selected, it is possible to perform normal velocity control without the above restrictions. is there.
[0016]
There is no particular limitation on the configuration in which the changing unit changes the parameter value when the detected value does not satisfy the limit value as a result of the comparison by the comparing unit.2It is most common to change the value of the parameter to a value that satisfies the limit value and output it, as in That is, as in the example described above, for example, when the detected gate time or the interval between key-on and key-off does not reach these values set as the limit values, the gate time set as the limit value, or the key-on time, For example, the key-off is output with a delay of the time set as the limit value.
[0017]
The claim2More specifically, when the limit value is an upper limit value, the value of the parameter changed by the changing means is set to be equal to or less than the upper limit value and output.3Or, if the limit value is the lower limit value, the value of the parameter changed by the changing means is set to the lower limit value or more and output.4Or, when the limit value includes an upper limit value and a lower limit value, the value of the parameter changed by the change means is set to be equal to or more than the lower limit value and equal to or less than the upper limit value, and is output.5)
[0018]
Claim1In a configuration in which a timbre can be selected as in the following configuration, when a timbre of a harpsichord is selected, a gate time or an interval between key-on and key-off can be considered as a target parameter. As described above, for example, even when a tone of a hapsicode is selected and a staccato key is played on a keyboard such as a piano, the detected gate time or the interval between key-on and key-off reaches these values set as limit values. If there is no such change, if the gate time is changed to the gate time set as the limit value, or if the key-off is output with a delay from the key-on by the time set as the limit value, the sound will not be cut off and output.
[0019]
If the tone of the organ is selected in the electronic musical instrument, other sounds whose volume changes with touch are also selected, and if the dual function is set so that these sounds can be output at the same time, the tone of the organ will also be selected. This makes it possible to perform normal velocity control, so that the volume of the tone of the organ does not feel small or large depending on the strength of the velocity.
[0020]
On the other hand, a true grand piano has a let-off function as described above. Therefore, in a configuration of an electronic musical instrument capable of selecting a timbre, when a timbre of a piano is selected, the target parameter is set to velocity, and when the detected velocity value does not reach the limit value, the sound is generated by the changing means. Such a let-off function can be realized by setting the velocity value of the musical tone to be performed to a value close to 0 to a value close to 0 or not outputting a key-on.
[0021]
Further, when a timbre of a musical instrument having a key range narrower than that of a piano (for example, an instrument capable of outputting musical tones only from C3 to C6) is selected, a target parameter is set as a key number, and a key range designated for each timbre is selected. When a key exceeding the limit value is pressed (that is, when a key number out of the limit value is detected), the key is set within the specified key range (that is, a range that satisfies the limit value). By controlling the octave to be shifted, the output of musical tones with unnatural key numbers that cannot be achieved with an acoustic musical instrument is eliminated, and the musical instrument can output musical tones in a normal key range. For example, when the key range of the harpsichord is in the range of C2 to C7, when the key number of G1 is pressed, control is performed so that the key number is replaced with G2.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show an example of an embodiment of the present invention, which is a configuration of an electronic piano that can select a tone color such as a piano, an organ, a harpsichord, and the like.
[0023]
In FIG. 1, a CPU 101, a RAM 102, a ROM 103, a keyboard unit 104 connected via a key scan circuit 104a, a panel operation unit 105 connected via a panel scan circuit 105a, and a musical sound generation unit 106 are connected to a bus 100. Various commands and data are transferred to these devices through the bus 100. The tone generator 106 is electrically connected to a D / A conversion circuit 107 for converting the generated tone to analog, and an amplifier for amplifying the tone and a sound system 108 such as a speaker for generating sound to the outside. I have.
[0024]
FIG.6-8FIG. 2 is a functional block diagram of an electronic piano having a configuration according to the present invention, and as shown in the drawing, the configuration includes a timbre selection unit 1, a limit value storage unit 2, a detection unit 3, a comparison unit 4, , A change unit 5.
[0025]
The timbre selection unit 1 includes a panel operation unit 105 and a panel scan circuit 105a. The timbre code (TC) selected there is sent to the CPU 101 and the tone generation unit 106 via the bus 100. In this configuration, tone codes such as a piano, an organ, and a harpsichord are set, and any of these can be selected by designating with a panel switch of the panel operation unit 105.
[0026]
The limit value storage unit 2 includes a ROM 103 for storing limit value data and a RAM 102 for storing addresses of a data storage area of the ROM 103 (in some cases, the limit value read from a data disk or the like). Is stored in the RAM 102), and a limit value set in at least one of the performance information parameters is stored for each tone color. For piano tones, the lower limit of velocity is stored. For organ tones, upper and lower limits of velocity are stored. For harpsichord tones, the lower limit of the key-on / key-off interval (gate time) is stored. (For example, a value of 10). In this embodiment, the lower limit of the interval (gate time) between key-on and key-off is stored in addition to the above-mentioned limit, that of a piano and an organ (for example, a value of 5 for both tones).
[0027]
The detection unit 3 includes a keyboard unit 104, a key scan circuit 104a, and a CPU 101, and detects key-on / key-off information (KON / KOFF), key code (KC), and keying speed (V) based on the keying of the operator detected there. ) Is sent to the CPU 101 and the tone generator 106 via the bus 100. When the tone color of the harpsichord is selected by the tone color selection section 1, the key-on / key-off information (KON / KOFF) detected by the keyboard section 104 is detected by the CPU 101 as an interval (gate time) between key-on and key-off. become. When the tone color of the organ is selected, the keying speed (V) detected by the keyboard unit 104 is detected by the CPU 101 as a velocity value. Further, when a piano tone is selected, the keying speed (V) similarly detected by the keyboard unit 104 is detected by the CPU 101 as a velocity value.
[0028]
The comparison unit 4 includes a CPU 101 and a RAM 102 as a work area. The comparison unit 4 compares a detection value detected by the detection unit 3 with a limit value of the same parameter stored in the limit value storage unit 2. is there.
[0029]
Further, the changing unit 5 is configured by the CPU 101, and changes the value of the parameter or the value of another parameter when the detected value does not satisfy the limit value in the comparison result of the comparing unit 4, The output is to the tone generator 106.
[0030]
In the above configuration, when the timbre of the harpsichord is selected by the timbre selection unit 1, the interval between key-on and key-off detected by the detection unit 3 is limited to the interval between key-on and key-off stored in the limit value storage unit 2. If the comparison unit 4 determines that the value (lower limit) has not been reached, the change unit 5 replaces the gate time with the gate time set as the limit value, that is, the key-off is delayed from the key-on by the time set as the limit value. (To the tone generator 106).
[0031]
FIG. 3 is a flowchart showing a flow of the above-described processing when a tone color of a harpsichord is selected in the configuration of the above embodiment. As a premise for explaining this flow, the minimum sounding time of the tone of the harpsichord is set to 10, and the minimum sounding time of the tone of the piano and the organ is set to 5.
[0032]
As shown in the figure, when the mode for implementing the configuration of the present embodiment is turned ON (step S101), first, the tone color is set (step S102). Here, it is assumed that the tone color of the harpsichord has been set by the tone color selection unit 1. Then, the minimum sounding time of the set tone is set (step S103). Here, the setting is performed by storing the address of the storage area of the minimum sounding time data (limit value) corresponding to the harpsichord timbre on the ROM 103 in the RAM 102.
[0033]
When the operator performs on the keyboard section 104, the detection section 3 detects key-on information (KON), key-off information (KOFF), key code (KC), and keying speed (V) (step S104).
[0034]
The CPU 102 detects whether or not key-on information has been input (step S105). If the key-on information has not been input (step S105; No), the CPU 102 proceeds to step S114 described later. Conversely, if key-on information has been input (step S105; Yes), key-on information is sent to the tone generator 106 (step S106). At the same time, the count is reset to 0 (step S107), and the counting is started (step S108). It is confirmed whether or not key-off information has been input on the way (step S109). If there is no input (step S109; No), the process returns to step S108 and continues counting.
[0035]
Here, if the key-off information is input (Step S109; Yes), the detected sounding time (the interval between the key-on information and the key-off information) is sent from the detection unit 3 to the comparison unit 4. The comparison unit 4 compares the value of the minimum sounding time (limit value) stored in the limit value storage unit 2 with the detected sounding time (step S110).
[0036]
Here, if the sounding time is equal to or longer than the set minimum sounding time (step S110; Yes), key-off information is sent to the musical sound generator 106 (step S113). However, if the sounding time is not equal to or longer than the set minimum sounding time (step S110; No), the process is then shifted to the changing unit 5 and counting is started again (step S111). On the way, it is confirmed whether or not the count value is equal to or longer than the minimum sounding time (step S112). If not (step S112; No), the process returns to step S111 to continue counting.
[0037]
Conversely, if the count value is equal to or longer than the minimum sounding time (step S112; Yes), the changing unit 5 sends key-off information to the musical tone generating unit 106 (step S113).
[0038]
These processes are performed during one keystroke. Then, it is confirmed whether or not the present mode setting has been released (step S114), and if it has been released (step S114; Yes), the process is terminated.
[0039]
On the other hand, if the tone has not been released (step S114; No), the process once shifts to the next step S115, and after it is confirmed whether or not there is a tone change, if there is no tone change (step S115; No), The process proceeds to step S105 to obtain the next keying information. On the other hand, if there is a tone color change (step S115; Yes), the process proceeds to step S102.
[0040]
By the above processing, even if the detected interval between the key-on information and the key-off information does not reach the value of the minimum sounding time set as the limit value, the key-off information is output by delaying the key-on information by the minimum sounding time. This makes it possible to prevent the sound from being cut off and giving a sense of incongruity, and to provide a feeling of playing as if an acoustic harpsichord is actually being played.
[0041]
Each of the above processing steps is a flow when the harpsichord is selected as the timbre in the timbre selecting unit 1, and when a piano or an organ is selected, the flow is as follows.
[0042]
When the electronic piano is configured as having a dual function capable of simultaneously playing an organ and another tone, when the organ alone is selected, the velocity value is controlled to a narrow range, and the dual function is performed. Is set, and when other timbres whose volume changes by touching are selected, normal velocity control is also performed without the above restrictions on the timbre of the organ.
[0043]
FIG. 4 is a flowchart showing a flow of the above-described processing when the tone color of the organ is selected. As a premise for explaining this flow, it is assumed that the velocity value when the tone color of the organ alone is selected is set to a narrow range where the upper limit is 90 and the lower limit is 80.
[0044]
As shown in the figure, when the mode for implementing the configuration of the present embodiment is turned on (step S201), first, the tone color is set (step S202). Here, it is determined whether or not the timbre setting includes the timbre of the organ (step S203). If it is determined that the timbre setting does not include the timbre of the organ (step S203; No), the process proceeds to step S206 described later. On the other hand, when the tone of the organ is included (step S203; Yes), it is determined whether another tone that can be simultaneously sounded is selected (step S204). Here, when it is determined that another timbre that can be sounded at the same time is set (step S204; Yes), normal velocity control is performed for both timbres.
[0045]
That is, when a performance is performed on the keyboard unit 104 by the operator (step S205), the detection unit 3 detects key-on information (KON), key-off information (KOFF), a key code (KC), and a keying speed (V) (step S205). S206). Then, the CPU 102 detects whether or not the keying speed information has been input (step S207). If the keying speed information has been input (step S207; Yes), the CPU 102 converts the keying speed value into a velocity value (step S207). S208). This velocity value is sent as it is to the tone generator 106 (step S209). On the other hand, if it is determined in step S207 that the keying speed information has not been input (step S207; No), the process returns to step S206.
[0046]
If only the tone color of the organ is set in step S204 (step S204; No), the above-mentioned limit value when the tone color of the organ alone is selected is set (step S210). Here, the setting is performed by storing the address of the storage area on the ROM 103 in which the upper and lower limits of the velocity values corresponding to the case of selecting the organ tone color alone are stored in the RAM 102.
[0047]
When the operator performs on the keyboard section 104, the detection section 3 detects key-on information (KON), key-off information (KOFF), key code (KC), and keying speed (V) (step S211).
[0048]
The CPU 102 detects whether or not the keying speed information has been input (step S212). When it is determined that the keying speed information has not been input (step S212; No), the CPU 102 returns to the step S211. If the keying speed information has been input (step S212; Yes), the keying speed value is converted into a velocity value (step S213).
[0049]
Then, it is determined whether or not this velocity value is equal to or less than the upper limit value (step S214). If the velocity value exceeds the upper limit value (step S214; No), the upper limit value is sent to the tone generator 106 as a velocity value. (Step S215).
[0050]
On the other hand, if it is determined in step S214 that the velocity value is equal to or lower than the upper limit value (step S214; Yes), it is determined whether the velocity value is equal to or higher than the lower limit value (step S216). If it is below (step S216; No), the lower limit value is sent to the tone generator 106 as a velocity value (step S217).
[0051]
Further, if it is determined in step S216 that the velocity value is equal to or larger than the lower limit value (step S216; Yes), the velocity value as it is is sent to the tone generator 106 (step S209).
[0052]
These processes are performed during one keystroke. Then, it is confirmed whether or not the present mode setting has been released (step S218). If the mode has been released (step S218; Yes), the process ends.
[0053]
On the other hand, if the tone has not been released (step S218; No), the process once shifts to the next step S219, and after it is confirmed whether or not there is a tone change, if there is no tone change (step S219; No), In order to obtain the next keying information, the process proceeds to step S206 or step S211. On the other hand, if there is a tone color change (step S219; Yes), the process proceeds to step S202.
[0054]
By performing such processing, if the sound other than the organ is set to sound at the same time as the organ, the sound of the organ will also be able to perform normal velocity control, and if played strongly, the sound of the organ will be If the volume of the organ becomes too low, and the volume is played softly, the volume of the organ tone will not be too high.
[0055]
FIG. 5 is a flowchart showing the flow of the above processing when a piano tone is selected. As a premise for explaining this flow, it is assumed that the velocity lower limit value is set to 5 in order to realize the piano let-off function.
[0056]
As shown in the drawing, when the mode for implementing the configuration of the present embodiment is turned on (step S301), first, the tone color is set (step S302). Here, it is determined whether or not a piano tone is selected for the tone setting (step S303). If the piano tone is not selected (step S303; No), the process proceeds to step S306 described later. Conversely, when the tone color of the piano is selected (step S303; Yes), the velocity lower limit value for realizing the piano's let-off function is set (step S304). Here, the setting is performed by storing the address of the storage area on the ROM 103 in which the velocity lower limit value corresponding to the selection of the piano tone is stored in the RAM 102.
[0057]
When the operator performs on the keyboard unit 104 (step S305), the detection unit 3 detects key-on information (KON), key-off information (KOFF), key code (KC), and keying speed (V) (step S306). .
[0058]
The CPU 102 detects whether or not the keying speed information has been input (step S307). When the keying speed information has not been input (step S307; No), the process returns to the step S306. Conversely, when the keying speed information is input (step S307; Yes), the keying speed value is converted into a velocity value (step S308).
[0059]
Then, it is determined whether or not the velocity value is equal to or greater than the lower limit value (step S309). If the velocity value is equal to or greater than the lower limit value (step S309; Yes), the velocity value is sent to the musical tone generator 106 (step S310).
[0060]
On the other hand, if it is determined in step S309 that the velocity value is lower than the lower limit value (step S309; No), the velocity value is set to 0 and sent to the musical tone generator 106 (step S311).
[0061]
These processes are performed during one keystroke. Then, it is confirmed whether or not the present mode setting has been released (step S312). If the mode has been released (step S312; Yes), the process ends.
[0062]
On the other hand, if the tone has not been released (step S312; No), the process once shifts to the next step S313, and after it is confirmed whether or not there is a tone change, if there is no tone change (step S313; No), The process advances to step S306 to obtain the next keying information. On the other hand, if there is a tone change (step S312; Yes), the process proceeds to step S302.
[0063]
By performing such processing, when the tone of the piano is set, and when the velocity value does not reach the lower limit value, the changing unit 5 sets the velocity value of the tone to be generated to 0. And the let-off function can be realized.
[0064]
In addition to the configuration of the present embodiment described above, for example, when a tone of a musical instrument having a key range narrower than that of a piano that can output musical tones only from C3 to C6 is selected, a target parameter is set as a key number and specified for each tone. When a key outside the specified key range is pressed (ie, when a key number out of the limit value is detected), the key is set to fall within the specified key range (ie, within a range satisfying the limit value). In such a case, a configuration for controlling the octave to be shifted may be provided. By providing such a configuration, the output of a musical tone having an unnatural key number that cannot be achieved by an acoustic musical instrument is eliminated, and the musical instrument can output a musical tone in a normal key range.
[0065]
Note that the electronic musical instrument of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the scope of the present invention.
[0066]
【The invention's effect】
As described above, claims 1 to 1 of the present invention are described.9According to the electronic musical instrument described above, it is possible to achieve an excellent effect that the feeling when playing can be set to a state close to that of an acoustic musical instrument.
[0067]
Among them, in the case of an electronic keyboard instrument with a tone setting such as a harpsichord, even if a staccato note is played on a keyboard such as a piano, the detected gate time or the interval between key-on and key-off is set as a limit value. If the value does not reach the limit, change the gate time to the limit value set as the limit value, or output the key off after delaying from the key on by the time set as the limit value, so that the sound will be cut off and give a sense of incongruity Such a thing disappears, and a feeling of playing as if actually playing an acoustic instrument can be obtained.
[0068]
Further, in the case of a mistouch, the detected velocity value does not reach the limit value, and the changing means sets the velocity value of the musical tone to be generated to a value close to 0 to 0 or does not output a key-on. Then, the let-off function of a piano (especially a grand piano) can be realized.
[0069]
Further, a tone is set for an instrument having a narrow key range, and when a key exceeding the designated key range is pressed for the tone, control is performed so that the octave is shifted so that the tone falls within the designated key range. By doing so, the output of musical tones with unnatural key numbers that cannot be achieved by an acoustic musical instrument is eliminated, and the musical instrument can output musical tones in a normal key range.
[0070]
In addition, in an electronic musical instrument having a dual function capable of simultaneously playing two or more tones, a tone of an organ and a tone whose volume is changed by touch (for example, a piano) are selected, and both tones are simultaneously played. When a function that can sound is selected, normal velocity control is performed, and when the organ alone is selected and the dual function is stopped, the velocity value can be controlled in a narrow range. Become like
[Brief description of the drawings]
FIG. 1 is a schematic circuit diagram of an electronic piano according to an embodiment of the present invention.
FIG. 2 Claims6-8FIG. 2 is a functional block diagram of the electronic piano according to the embodiment of the present invention.
FIG. 3 is a flowchart illustrating a processing flow when a tone color of a harpsichord is selected in the configuration of the present embodiment.
FIG. 4 is a flowchart showing a processing flow when a tone of an organ is selected in the configuration of the present embodiment.
FIG. 5 is a flowchart showing a processing flow when a piano tone is selected in the configuration of the present embodiment.
[Explanation of symbols]
1 Tone selection section
2 Limit value storage
3 Detector
4 Comparison section
5 Change section
100 bus
101 CPU
102 RAM
103 ROM
104 keyboard
104a key scan circuit
105 Panel operation unit
105a Panel scan circuit
106 Tone generator
107 A / D conversion circuit
108 sound system

Claims (9)

Tone selection means for selecting a tone;
Limit value storage means for storing a limit value set in at least one of the performance information parameters;
Detecting means for detecting a value of the parameter included in the performance information with respect to a predetermined parameter determined for each timbre selected by the timbre selecting means;
Comparing means for comparing the detected value detected by the detecting means with the limit value of the same parameter stored in the limit value storing means;
An electronic musical instrument comprising: a change unit that changes and outputs the value of the parameter or the value of another parameter when the detected value does not satisfy the limit value as a result of the comparison by the comparison unit. Electronic musical instrument according to claim 1, wherein the relates changed parameter value by said changing means, and outputs the change to a value that satisfies the limit value the value of a parameter. 3. The electronic musical instrument according to claim 2 , wherein when the limit value is an upper limit value, the value of the parameter changed by the changing unit is set to be equal to or less than the upper limit value and output. 3. The electronic musical instrument according to claim 2 , wherein when the limit value is a lower limit value, the value of the parameter changed by the changing unit is set to be equal to or more than the lower limit value and output. 3. The electronic device according to claim 2 , wherein when the limit value includes an upper limit value and a lower limit value, the value of the parameter changed by the changing unit is set to be equal to or more than the lower limit value and equal to or less than the upper limit value and output. Musical instruments. The electronic device according to any one of claims 1, 2 , 4 , and 5 , wherein when a tone of a harpsichord is selected, a target parameter is a gate time or an interval between key-on and key-off. Musical instruments. The electronic musical instrument according to any one of claims 1 to 5 , wherein a target parameter is velocity when a tone of the organ is selected. If the tone color of a piano has been selected, an electronic musical instrument according to claim 1, wherein the parameter of interest is characterized in that it is a velocity. When the tone of a musical instrument with a narrow key range is selected, the target parameter is a key number, and when a key number outside the limit value is detected, the octave is shifted to a range that satisfies the limit value. The electronic musical instrument according to claim 1, wherein:

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