JP2921013B2 - Performance information display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a performance information display capable of effectively displaying the pitch and touch of a performance sound based on performance information including pitch information and touch information. Related to the device.

[Conventional technology]

An electronic musical instrument having a function of detecting a touch at the time of a key pressing operation and displaying the strength of the touch is disclosed in JP-A-62-187894. There, the display device displays only the touch intensity of one key that has been pressed most recently.

On the other hand, some electronic musical instruments conforming to the MIDI standard generate a tone signal corresponding to note data (pitch information) received according to the MIDI standard, while displaying a key corresponding to the note data.

[Problems to be solved by the invention]

In the conventional touch strength display, it is inconvenient to know which sound (key) the touch strength is currently displayed. Even if the function of displaying the key of the generated sound is combined with this, only the touch strength of one key is displayed. Therefore, when a plurality of keys are pressed at the same time, the correlation between the pressed key and the touch strength is displayed. I do not understand, it is inconvenient.

For example, when a desired performance is programmed in the sequencer, it is preferable to know the correlation between the pressed key and the touch strength, because it is convenient for programming.

Further, not only the relationship between the pressed key and the touch strength but also the correlation between the pressed key and the control information such as the volume level or the envelope level is similarly preferable.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to provide a performance information display device capable of effectively displaying the pitch and touch of a performance sound based on performance information including pitch information and touch information. It is assumed that.

[Means for solving the problem]

A performance information display device according to a first aspect of the present invention comprises a performance information generating means for generating performance information including pitch information for specifying a pitch and touch information for specifying a touch, and a performance information generated by the performance information generating means. Display means for displaying the performed performance information, and a pitch specified by the pitch information included in the performance information and a touch specified by the touch information are displayed on the display means, and displayed by the display means. Control means for changing and controlling the display mode of the touch in accordance with the elapsed time since the performance information is generated by the performance information generating means.

A performance information display device according to a second aspect of the present invention includes a performance information generating means for generating performance information including pitch information for specifying a pitch and touch information for specifying a touch, and a performance information generated by the performance information generating means. Display means for displaying the performed performance information, the number of which is smaller than the total number of pitches that can be specified by the pitch information, and the pitch specified by the pitch information have a predetermined relationship. Control means for displaying a touch specified by the touch information using a common display unit for each of the objects.

[Action]

According to the performance information display device according to the first aspect, the pitch specified by the pitch information included in the performance information and the touch specified by the touch information are displayed on the display means, and the touch of the touch displayed on the display means is displayed. Since the display mode is controlled to be changed according to the elapsed time since the performance information is generated, the pitch and the touch of the performance sound can be displayed effectively, and this is particularly effective for displaying the initial touch. is there. That is, simply displaying the touch specified by the touch information results in a continuous display, and cannot express the initial touch. On the other hand, by changing and controlling the display mode of the touch according to the elapsed time after the performance information is generated (that is, the elapsed time after the key is pressed) as described above, it is possible to express the likeness of the initial touch. It is very easy to understand.
Also, compared to a case where the actual volume envelope controlled based on the initial touch is detected and the display control is performed according to the detection level, the display mode only needs to be controlled in accordance with the passage of time, which is troublesome. No control is required.

According to the performance information display device according to the second aspect, the display means is provided in a number smaller than the total number of pitches that can be specified by the pitch information, and each of the pitch information specified by the pitch information has a predetermined relationship. Since the touch specified by the touch information is displayed using the common display unit, the configuration of the display means can be simplified. As an example, a common display unit may be used for each of a plurality of discrete pitches (for example, a common display unit may be used for each pitch name). As another example, a common display unit may be used for each of a plurality of continuous pitches (for example, a common display unit may be used for a plurality of adjacent keys).

〔Example〕

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, the electronic musical instrument according to this embodiment is controlled variously by a microprocessor unit (CPU) 10. A program and data ROM 11, a working and data RAM 12, a MIDI
Interface 14, display 15, panel switch group
16, a tone signal generating circuit 17 and a timer 18 are connected. The MIDI interface 14 is an interface for inputting information expressed in the MIDI standard, and is connected to a data input device 19 for inputting various information such as pitch information and control information in the MIDI standard.

The data input device 19 may be, for example, a performance operation device such as a keyboard module or a host computer. The types of information of the MIDI standard input by the data input device 19 include, for example, a note-on message, a note-on message, a control change message, and the like. These are broadly included in what is called “channel voice message” in the MIDI standard.

As an example of a “channel voice message”, a note-on message is generated in response to a key-on event indicating that a key has been newly pressed, and is a key-on event (hereinafter simply referred to as a note-on). A status byte consisting of status information indicating the key and a channel number information indicating one of the 16 MIDI channels to which the key is assigned (one of the 16 MIDI channels), and a byte consisting of a note number (ie, a key code) indicating the key , A byte consisting of velocity data which is the touch information of the key (specifically, initial touch information),
Consists of a total of 3 bytes. The note-off message is generated in response to a key-off event indicating that a key has been newly released, and information indicating a key-off event (hereinafter simply referred to as a note-off) and the key are assigned. A status byte consisting of channel number information indicating a channel number (one of 16 MIDI channels), a byte consisting of a note number (that is, a key code) indicating the key, and velocity data being touch information of the key. , A total of 3 bytes. In this case, the note number corresponds to the pitch information, and the velocity data corresponds to the control information.

The program and data ROM 11 stores various programs and various data of the CPU 10, and is constituted by a read-only memory (ROM).

The working and data RAM 12 temporarily stores various data used when the CPU 10 executes a program, and a predetermined address area of a random access memory (RAM) is allocated as a working area and a data area, respectively.

The display 15 has a function of correlating the relationship between the pitch of the generated musical tone and the value of predetermined control information (eg, the brightness data, ie, touch information) corresponding thereto. May be displayed. In one embodiment, a liquid crystal display or any other suitable graphic display is used as the display 15.

FIG. 2 shows a display example of the correlation between the pitch and the velocity data on the display 15. That is, the value of the velocity data with respect to the pitch is displayed in the form of a bar graph, with the pitch on the horizontal axis and the value of the velocity data (control information) on the vertical axis. More specifically, a figure indicating a keyboard is displayed below the horizontal axis to be a pitch scale. It is preferable that the keyboard graphic display 15A corresponds to the entire key range of the keyboard, but is not limited thereto.
It may correspond to a limited area of only one octave. This embodiment involves the latter. In this way, when the limit board graphic display 15A serving as the horizontal axis pitch scale is provided corresponding to the key range of only one octave, the same pitch name as the pitch scale equal to the key of the same pitch name in different octaves The scale may be shared.

The bar graph display 15B showing the value of the velocity data is 1
It is preferable to use 12 pitch scales, ie, bar numbers, corresponding to each of the two pitch names, but it is not required to be so precise. It is practically possible to use a scale, that is, a bar number. In this embodiment, the latter is followed. This division is performed, for example, by dividing the 12-tone names C to B into adjacent pairs of white keys and black keys and assigning bar numbers 0 to 6 as described below.

Bar number 0: C and C #. Bar number 1: D and D #.

Bar number 2: E only. Bar number 3: F and F #.

Bar number 4: G and G #. Stick number 5: A and A #.

Bar number 6: B only.

At the bar number corresponding to the pitch of the musical tone to be generated, the value of the velocity data is displayed in a bar graph format. In this case, if two pitch names are assigned to the same bar number, that is, the pitch scale, bar graph display data is created and displayed based on appropriate criteria such as priority selection or average. Similarly, for keys of the same note name in different octaves to which the same bar number, that is,
Bar graph display data is created and displayed based on appropriate criteria such as priority selection or average.

Therefore, for example, when three tones C1, C # 1, and C2 overlap as musical tones to be generated, one bar graph display data is created based on the velocity data and based on an appropriate standard such as priority selection or averaging. It will be displayed with bar number 1.

In this embodiment, the display control on the display 15 including the creation of the display data as described above is performed by the CPU 1.
Executed by a software program under control of 0. In the display control, working and data RA
In M12, the following data registers are prepared,
Used.

Velocity data value register TDD: This register stores velocity data to be displayed corresponding to each bar number, and has a 1-byte capacity per bar number. However, in this embodiment, the bar numbers actually displayed on the display 15 as described above are 0 to
Although there are only six, the velocity data value register TDD can store velocity data corresponding to each bar number while distinguishing octaves. When the number of keys on the keyboard is 5 octaves + 1 key = 61 keys, there are 7 × 5 + 1 = 36 bar numbers distinguishing octaves. Therefore, in this embodiment, the velocity data value register TD
D is provided corresponding to bar numbers 0 to 35 for 5 octaves + 1 key. Assuming that the bar number is i, the velocity data value register corresponding to the bar number is represented by TDD (i) below.

Keyboard bit map: A register for storing a key pressed state (note on) for each key, uses a register area of 1 word = 2 bytes per octave, and has a bit register area for all keys. The relationship between each bit in the register area for one octave and the note name is exemplified below. “1” is stored in the bit corresponding to the key in the key pressed state (note on).

Key-on note flag OKNF: Key pressed state (note on)
Is a flag register for storing "1" in correspondence with the note name in the "1" section. Each of the 12 note names has one bit, and the same flag bit is used for the same note name in different octaves. Assuming that a key code indicating a key name is KCD, a key-on note flag corresponding to a note name of a key supported by the key code is represented by KONF (KCD) below. For example, in the keyboard graphic display 15A of the display 15, a predetermined display indicating a key-on state may be added in accordance with the key being pressed, using the contents of the key-on note flag KONF. In the key-on display, for example, as shown in FIG. 2, a part of the black key display is inverted to white, and a part of the white key display is inverted to black.

The number of note-ons (the number of simultaneous key presses) is counted for each note name of the note-on counter KCNT: 12.
In the key-on note flag KONF, it is impossible to distinguish how many keys of different octave readings are pressed at the same time. Therefore, the counter distinguishes them. The note-on counter corresponding to the key name of the key indicated by the key code KCD is hereinafter represented by KCNT (KCD).

Returning to FIG. 1, the panel switch group 15 includes a tone color, a volume,
It includes various switches, operators, and the like for selecting, setting, and controlling pitch, effects, and the like.

The tone signal generation circuit 17 is capable of simultaneously generating tone signals on a plurality of channels, and generates tone signals assigned to the respective channels based on data provided via the bus 13.

The tone signal generation method in the tone signal generation circuit 17 may be of any type. For example, a memory reading method for sequentially reading out musical tone waveform sample value data stored in a waveform memory according to address data that changes in accordance with the pitch of a musical tone to be generated, or a method in which the address data is used as phase angle parameter data at a predetermined frequency A known method such as an FM method for performing a modulation operation to obtain tone waveform sample value data or an AM method for performing a predetermined amplitude modulation operation using the address data as phase angle parameter data to obtain a tone waveform sample value data is used. You may employ suitably.

The tone signal generated from the tone signal generating circuit 17 is supplied to the sound system 20 and is acoustically generated.

The timer 18 controls the decay of the bar graph display on the display 15 over time. That is, in this embodiment, the display control is performed so that the bar graph level of the velocity data value displayed in response to the key-on event is gradually attenuated with the passage of time, and the time count for this is controlled by the clock of the timer 18. Perform by output.

Next, an example of the processing executed by the CPU 10 will be described with reference to the flowcharts shown in FIGS.

In the main routine of FIG. 3, after a predetermined initial setting process, a routine including a MIDI receiving process, a panel switch group scanning process, and other processes is repeated. In the course of the main routine, the timer interrupt routine shown in FIG. 7 is executed each time an interrupt is generated by the output clock signal of the timer 18.

In the MIDI receiving process, the MIDI interface 14 is checked, and if there is received data, a predetermined process is performed. In the panel switch group scan processing, the panel switch group 16 is scanned, and processing according to the scan result is performed.

Referring to FIG. 4, a detailed example of the MIDI receiving process will be described. First, the MIDI interface 14 is checked to determine whether or not there is received data (steps 21 and 22). If there is received data, it is checked whether it is a channel voice message (step 23), and if so, the channel number information included in the received data is stored in the MIDI channel number register MDC (step 24). . Then, based on the status information of the channel voice message, it is checked whether the content is a note-on message, a note-off message, or other (step 25).

If the channel voice message received this time is a note-on message, a note-on process in step 26 is performed. A detailed example of this note-on process is shown in FIG. Step if note-off message
Perform 27 note-off processing. A detailed example of this note-off process is shown in FIG.

The note-on processing will be described with reference to FIG. 5. First, from the received note-on message, the key code of the key related to this key-on event (that is, the newly pressed key), that is, the note number, and the touch information, that is, the velocity data The key code is stored in the key code register KCD, and the velocity data is stored in the initial shell touch register IT (step 28).

Next, according to the correspondence setting between the sound channel of the sound source and the MIDI channel, the sound channel of the sound source corresponding to the MIDI channel number information stored in the register MDC is determined, and the determined sound channel number of the sound source is determined. Store in the assigned channel register AS (step 29).

Next, voice data set for the MIDI channel is extracted based on the MIDI channel number information stored in the register MDC, and the key code and velocity data corresponding to the voice data and stored in the registers KCD and IT are also extracted. The various parameters for voice setting (parameters for setting and controlling the tone color, volume, etc.) which are taken into consideration are read out from the data ROM 11 or RAM 12 and / or created as appropriate by calculation, and stored in the various parameters for voice setting and the register KCD. The key code and the key-on signal indicating the key pressed are sent to the tone signal generation circuit 17 together with the assigned channel number information of the sound source stored in the assigned channel register AS (step 29). The tone signal generation circuit 17 generates a tone signal having a pitch corresponding to a given key code in a sound channel specified by the assigned channel number information, and determines characteristics of the tone, volume, and the like of various parameters for voice setting. Set and control according to. As is well known, for example, when the volume is controlled by velocity data, that is, touch information, the value of the velocity data is reflected in a volume setting parameter included in various parameters for voice setting, and a volume corresponding to an initial touch when a key is pressed is determined. Control is exercised.

Subsequent processing in steps 31 to 38 is processing for controlling display on the display 15.

First, in step 31, the key-on note flag KONF corresponding to the note name of the key code stored in the register KCD
Check if (KCD) is set to “1” (whether a key with the same note name has already been pressed). If NO, step
Go to 32 and set this key-on note flag KONF (KCD) to "1".

In the next step 33, display the keyboard figure on the display 15.
At 15A, a predetermined display indicating the key-on state is added to the key display corresponding to the key name of the key code stored in the register KCD. As described above, for example, as shown in FIG. 2, a part of the key-on display is inverted to white in the black key display, and a part of the key-on display is black to the black key display. In the next step 34, the value of the note-on counter KCNT (KCD) corresponding to the note name of the key code stored in the register KCD is set to "1", and one key of the note name is depressed. Is shown.

Next, at step 36, a horizontal axis pitch scale or bar number of the bar graph type display 15B corresponding to the key code stored in the register KCD is generated, and this is stored in the register GN. As described above, if all keys are 61 keys,
It is any of 0-35.

In step 37, a predetermined upper bit of the velocity data of the register IT is extracted and stored in the velocity data value register TDD (GN) specified by the register GN.
As described above, since the same stick number is shared by two adjacent keys, when two adjacent keys are pressed at the same time, one of the velocity data is already stored in the register TDD (GN). It is possible. In that case, as described above, according to predetermined criteria such as priority selection or average,
Create one bar graph display velocity data based on the velocity data of both, and register it in the register TDD (GN)
Store in

In step 38, the bar graph type display 15
Scale position GN 'corresponding to the bar number of register GN in B
The bar graph is displayed at the level corresponding to the velocity data of the register TDD (GN). As described above, there are only 7 horizontal graduation positions for one octave.
Convert the bar number of GN to the scale position GN ', and the scale position GN'
Displays a bar graph of the velocity data level. As described above, when multiple keys having the same note name in different octaves are simultaneously pressed, the same scale position GN ′ is used.
May already display velocity data for another key. In this case, as described above, one bar graph display velocity data is created based on a plurality of velocity data of different octaves and the same note name in accordance with a predetermined standard such as priority selection or average, and this is displayed at the scale position.
Displayed as GN '.

If the key with the same note name has already been pressed, the determination in step 31 is YES, and the process goes to step 35 where the value of the note-on counter KCNT (KCD) for the note name is set to 1
Count up. Then, the above steps 36, 37, 38
Is performed. Thus, note-on counter KCNT
(KCD) counts how many keys with the same note name are pressed.

As described above, when there is a key-on event, the sounding of the new pressed key is started, and the bar graph display schematically showing the degree of initial touch when the key is pressed is displayed on the relative pitch scale of the key. Display according to position
Displayed at 15.

In this embodiment, the bar graph display gradually attenuates as time elapses after the key-on event. This attenuation display control is executed by a timer interrupt routine shown in FIG.

In FIG. 7, first, the stick number register i is set to 0 (step 39), and then the velocity data value register TDD (i) of the stick number indicated by the register i is set.
It is checked whether or not the velocity data stored in is stored at 0 (step 40). If NO, this register TDD
The content of (i) is reduced by a predetermined value (for example, 1) (step 41). Then, in the next step 42, similarly to step 38 described above, at the graduation position i 'corresponding to the bar number of the register i in the bar graph type display 15B of the display 15,
A bar graph is displayed at a level corresponding to the data stored in the register TDD (i). As described above, the horizontal axis scale position is 1
Since there are only seven octaves, the bar number of the register i is converted into the scale position i ', and a bar graph display of the velocity data level is performed at the scale position i'. If the velocity data display of multiple keys with the same name conflicts, one bar graph display velocity data is created based on a plurality of velocity data of the same note name of different octaves in accordance with a predetermined standard such as priority selection or average, and this is displayed. It is displayed at the scale position i '.

Next, the value of the register i is incremented by 1 (step 43), and it is checked whether i has exceeded the maximum bar number 35, that is, whether i> 35 (step 44). If NO, return to step 40 and repeat steps 40-44. If YES, the timer interrupt routine ends.

Thus, each time the timer interrupt routine is executed once, the values of the velocity data value registers TDD (i) for all the bar numbers i = 0 to 35 are respectively reduced by 1, and the reduced values are displayed on the bar graph type display 15B of the display 15. Perform bar graph display based on the graph. Therefore, each time the timer interrupt routine is repeated, the bar graph display on the display 15 gradually decreases. The display method of the attenuation is not limited to the display method of attenuating from the upper part of the bar graph, but may be the display method of attenuating from the lower part. Thus, the temporal attenuation display gives a feeling that the value of the initial touch information is displayed. Of course, the display may be continued without performing the temporal attenuation display. Alternatively, even when control information other than the initial touch information is displayed, the time-dependent attenuation display control by the timer interrupt routine may be performed.

Next, the note-off processing will be described with reference to FIG. 6. First, the key code of the key related to this key-off event (that is, the newly released key), that is, the note number, is extracted from the received note-off message. The data is stored in the key code register KCD (step 45).

Next, based on the MIDI assigned channel number of the key related to the key-off event stored in the register MDC, a sound channel on the sound source side to which the key related to the key-off event is assigned is searched, and this is referred to as an assigned channel register AS.
(Step 46). Then, a key code signal indicating a key release corresponding to the channel number stored in the register AS is transmitted to the tone signal generation circuit 17 (step 4).
7).

Subsequent processes in steps 48 to 52 are processes for controlling the display on the display 15.

First, in step 48, the key-on note flag KONF corresponding to the key name of the key code stored in the register KCD
Check whether (KCD) is set to “1”. If YES, go to step 49, note-on counter KCNT (KC
Count down the value of D) by one. As a result, the note-on counter KCNT (KCD) indicates the number of simultaneous key depressions of the same note name, which has been reduced by key release.

In the next step 50, note-on counter KCNT (KC
It is checked whether the counted value of the number of keys pressed in D) has become 0 or less. YES
If so, the key of the note name has not been pressed, so the process goes to step 51 and resets the key-on note flag KONF (KCD) corresponding to the note name to “0”. Next Step 52
In the keyboard graphic display 15A of the display 15, the predetermined display indicating the key-on state of the key display corresponding to the key name of the key code stored in the register KCD is deleted, and the key corresponding to the key name is released. Indicates that it was done.

The erasure of the predetermined display indicating the key-on state may not be performed immediately upon key release, but may be performed after the attenuation of the musical tone has ended.

In addition, even when the key is released, if the attenuation control of the bar graph display is not completed, the attenuation rate may be increased to perform the display attenuation control, or the remaining bar graph display may be erased at once. Good. Of course, the display attenuation control may be continued without changing the attenuation rate. Further, the display may not be attenuated during key-on, and may be started to be attenuated when the key is turned off.

Further, another bar graph type display unit may be provided below the construction board graphic display 15A of the display 15, and the value of the velocity data included in the note-off message may be displayed on this bar graph type display unit.

In the above embodiment, the bar graph type display 15B is composed of a scale that divides one octave into seven parts. However, the present invention is not limited to this, and one octave may be divided into twelve parts to correspond to each note name one-to-one. Conversely, the number of decompositions may be less than 7. Also, the keyboard graphic display 15A forming the horizontal axis pitch scale is not limited to one octave, and may be provided corresponding to a plurality of octaves or the whole octave.

The display format of the correlation between the pitch and the control information value is not limited to the bar graph, but may be any other suitable format such as a line graph or digital display. Also, the graphic of the horizontal axis pitch scale is not limited to the limited board graphic, and may be another figure.

Further, the data processing method for displaying a bar graph and the calculation method for attenuating display are not limited to those described in the above embodiment, and any method may be used.

The display 15 may be displayed in a dot matrix display format in order to enable arbitrary graphic display. In this case, in order to increase the response speed of the display, the bar graph in the bar graph type display 15B, the keyboard diagram and the key-on state display in the keyboard graphic display 15A are not controlled in the graphic mode, but are stored in the character generator RAM as font data in advance. It is better to register it and display it as font data.

The control information to be displayed is not limited to the initial touch information, and may be after touch information indicating the strength of the pressing force when the limited pressing is continued. In this case, the current value of the detected aftertouch may be displayed in real time without performing the temporal attenuation display. Further, the initial touch information may be displayed immediately after the key is pressed, and the after touch information may be displayed thereafter.

Alternatively, information obtained by multiplying the touch information with the volume setting information or the like may be displayed.

Furthermore, not only the touch-related information but also a correlation between other control information such as volume setting information and envelope level information and a pitch may be displayed. In this case, the control information value may be displayed corresponding to each of a certain range of the sound range without strictly understanding the pitch. Also MIDI
The relationship between the channel number and the assigned key code or the relationship between the MIDI channel number and the velocity data may be displayed.

Alternatively, only a display for confirmation may be performed without simultaneously generating musical tones.

The present invention is not limited to the software program as in the above-described embodiment, but may be implemented by configuring a dedicated hardware device.

〔The invention's effect〕

As described above, according to the present invention, the pitch specified by the pitch information included in the performance information and the touch specified by the touch information are displayed on the display unit, and the display mode of the touch displayed on the display unit is changed. Since the change control is performed according to the elapsed time from when the performance information is generated, the pitch and the touch of the performance sound can be displayed effectively, and the display of the initial touch is easy to understand and the configuration is easy to understand. Is also simple and effective. In addition, display means are provided in a number smaller than the total number of pitches for which pitch information can be specified, and the touch information is displayed using a common display unit for each of the pitches specified by the pitch information in a predetermined relationship. Since the designated touch is displayed, the configuration of the display means can be simplified.

[Brief description of the drawings]

FIG. 1 is a block diagram of a hardware circuit configuration showing an embodiment of an electronic musical instrument to which a performance information display device according to the present invention is applied, FIG. 2 is a diagram showing a display example on the display of FIG. 1, and FIG. 1 is a flowchart illustrating a main routine of a program executed by the microprocessor unit of FIG. 1, FIG. 4 is a flowchart illustrating an example of a MIDI reception process of FIG. 3, and FIG. 5 is an example of a note-on process of FIG. FIG. 6 is a flowchart showing an example of the note-off process of FIG. 4, and FIG. 7 is a flowchart showing an example of a timer interrupt routine for the main routine of FIG. 10: Microprocessor unit (CPU), 11: Program and data ROM, 12: Working and data R
AM, 14… MIDI interface, 15… Display,
15A: Keyboard graphic display, 15B: Bar graph display, 16 ...
Panel switch group 16, 17 ... tone signal generation circuit, 18 ...
Timer 18.

Claims (4)

(57) [Claims] 1. Performance information generating means for generating performance information including pitch information for specifying a pitch and touch information for specifying a touch, and performance information for displaying the performance information generated from the performance information generating means. Display means for displaying, on the display means, the pitch specified by the pitch information included in the performance information and the touch specified by the touch information, and displaying the display mode of the touch displayed on the display means as the performance information generation. Control means for performing change control in accordance with the elapsed time from the generation of the performance information by the means. 2. Performance information generating means for generating performance information including pitch information for specifying a pitch and touch information for specifying a touch, and performance information for displaying the performance information generated from the performance information generating means. A display unit provided with a number of display units smaller than the total number of pitches that can be specified by the pitch information; and a common display unit for each of the pitches specified by the pitch information having a predetermined relationship. And a control means for displaying a touch specified by the touch information. 3. The performance information display device according to claim 2, wherein said control means uses a common display unit for each of a plurality of discrete pitches. 4. The performance information display device according to claim 2, wherein said control means uses a common display unit for a plurality of continuous pitches.