JP2000099016A - Electronic musical instrument and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the visibility of the navigate display of key touching timing and to easily play. SOLUTION: The instrument has an automatic playing function in which automatic playing data are successively read for every prescribed amount whenever a keyboard is operated. In the instrument, the guide of a key touching timing is displayed for every plural lines. Besides black circles 22 indicating the key touching timing, bar lines 23 and beat lines 24 are also being displayed. Thus, more guide information is simultaneously displayed. Note that a guide display is provided to the distance point from a current playing position. Furthermore, the meter of the presently selected automatic playing data as well as the position of the circle 22 being displayed in the which beat are easily understood.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument and a recording medium, and more particularly, to an electronic musical instrument having an automatic musical performance function for executing automatic musical performance data in response to an operation of an operator such as a keyboard or a pad by a player. Or an automatic performance device.

[0002]

2. Description of the Related Art Conventionally, automatic performance data is prepared in advance, and each time a player operates an operator such as an arbitrary keyboard or pad, the automatic performance data is read out and played. A device has been proposed. In such an automatic performance device, each time the operating element is operated once, one operation is performed.
One note data (a plurality of note data in the case of a chord) is read and sounded. Therefore, an automatic performance can be performed by sequentially depressing an arbitrary key or the like at a rhythm and a tempo corresponding to the music of the automatic performance data.

In this type of automatic performance device, a display is provided on an operation panel of an electronic musical instrument provided with the automatic performance device, and a navigation for displaying a timing such as a key press based on the automatic performance data is performed. Some had features. The example of the note navigation display used conventionally is
As shown in FIG.

In FIG. 7, reference numeral 101 denotes a liquid crystal display unit provided on an operation panel or the like of an electronic musical instrument, on which a navigation display indicating the timing of key depression or the like is performed. The liquid crystal display unit 101 is capable of displaying up to 16 ASCII codes or a predetermined number of registered characters in the horizontal direction, and is used to display automatic performance data having a length of four quarter notes. The key timing is configured to be displayed on only one line.

That is, by displaying a black circle (●) in an arbitrary area of the display area for 16 characters, the key depression timing of the performance data is indicated by the position of the black circle from left to right of the liquid crystal display unit 101. It had been. Also, when an automatic performance for one line is performed in accordance with the navigation display for one line, the display is switched to the next one line.

[0006]

However, in the above-described conventional navigation display, a key depression timing of a length of four quarter notes is displayed for only one line, so that the player can immediately follow the key. I could only know the key press timing. In addition, immediately after executing the last performance displayed in the one line, the display is switched to the next one line of the navigation display. In particular, in the display switching part, the next key pressing timing is known until immediately before the switching. Can not
There was a problem that it was difficult to play.

In the conventional navigation display, the time interval between key presses is long where the interval between black circles is large.
Conversely, it is possible to intuitively know that the time interval between key presses is short where the interval between black circles is small. But,
With the display of only the black dots, the beat of the performance data is not clearly understood, and it is also difficult to know to what beat the position of the displayed black dot belongs. Was.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and has as its object to improve the visibility of a navigation display of a key-depression timing and to make it easier to perform. .

[0009]

The electronic musical instrument according to the present invention has an automatic musical performance function of sequentially reading out the prepared automatic musical performance data by a predetermined amount each time an operator is operated and performing the musical performance. Guide display means for performing a guide display of the operation timing of the operation element based on the automatic performance data, wherein the guide display means displays the guide of the operation timing in a plurality of lines.

Another feature of the present invention is that, when the operation of the operator is performed in accordance with the guide display of a certain line, the guide display means operates the already operated line based on the automatic performance data. Is switched to a new guide display. For example, the first line is switched to a new guide display when the operation of the controller is moved to the last line currently displayed in the guide, and the operation of the controller is moved to the first line from the last line currently displayed in the guide. In such a case, the second and subsequent lines may be switched to a new guide display.

According to another feature of the present invention, the guide display means is provided based on the automatic performance data.
A bar line and a beat line are displayed in addition to the display indicating the operation timing.

Since the present invention comprises the above technical means, it is possible to display more information at a time on the display for guide display than before, and it is possible to display the guide farther from the current playing position. Can be performed. According to another feature of the present invention, when a performance is performed according to a guide display of a certain line, the guide display of the already played line is switched to a new guide display in advance. It is possible to display the guide ahead of time with a margin. According to another feature of the present invention, a bar line and a beat line are displayed together with the display indicating the operation timing, so that the visibility of the guide display is improved.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of an electronic musical instrument to which the automatic performance device of the present embodiment is applied. In FIG. 1, CPU 10, ROM 11, RA
The M12, the keyboard scan circuit 15, and the tone generator 17 are connected to bus lines 20 such as a data bus and an address bus, respectively, so that data transmission and reception are performed mutually.

The keyboard scanning circuit 15 includes a keyboard 16
Is connected. The keyboard 16 includes one or a plurality of keys including a plurality of keys and a key switch provided corresponding to each of the keys. The keyboard scan circuit 15
In addition to detecting key depression and key release of the keyboard 16 in accordance with the state of the key switch, it is also configured to detect the key operation speed. In the automatic performance mode, any key on the keyboard 16 is used to instruct reading of automatic performance data, and the performance data is sequentially read out by a predetermined amount each time the player presses any key. Automatic performance is performed.

The CPU 10 has an operation panel unit 13.
And an external I / F 14 are connected. The operation panel unit 13 includes various controls for setting the timbre, volume, effect, rhythm, and the like, and controls (selection of performance data, tempo setting, etc.) used when performing an automatic performance based on the automatic performance data. Controls for performing various operations, etc.), a display for displaying various setting states by the above-described various controls, and a navigation display for navigating the key press timing. Further, the external I / F 14 is configured by a MIDI interface or the like.

The CPU 10 controls the entire electronic musical instrument in accordance with the control program stored in the ROM 11 while using the RAM 12 as a work memory. For example, in the manual performance mode, a scan process of each key switch of the keyboard 16 and a scan process of each operator of the operation panel unit 13 are performed, and the operation state of each key on the keyboard 16 (key pressed, released, operated). Key switch number (key number) of key, velocity of key operation speed, etc.)
By detecting the operation state of each operation element on the operation panel section 13 and supplying the same to the sound source section 17, sound generation processing or the like according to the operation of each key or each operation element is executed.

In the automatic performance mode, the CPU 10 outputs the automatic performance data selected by the switch provided on the operation panel unit 13 every time a key is pressed.
A predetermined amount is sequentially read from the OM 11 and is read out from the sound source unit 1.
7 to generate and output a corresponding tone signal. At the same time, a process of displaying the key press timing navigation on a display on the operation panel unit 13 based on the read automatic performance data is also performed.

The ROM 11 stores, in addition to a program storing various processing procedures of the CPU 10, automatic performance data used when performing an automatic performance as several types of preset data. Also, it stores tone waveform data such as PCM used when the tone generator 17 forms tone data. Further, the RAM 12 has a storage area for temporarily storing various necessary data in the course of the execution of the program by the CPU 10 and for storing data obtained as a result of various processes. User data generated by freely editing preset automatic performance data in the ROM 11 is also stored in the RAM 12.

The sound source section 17 has a plurality of tone generation channels and is configured to be able to generate a plurality of tone simultaneously. The tone generator 17 reads out PCM tone waveform data from the ROM 11 based on key number information (note information) representing each key sent from the CPU 10 and tone parameter information set by operating each operation element. After processing the amplitude and the envelope, the set effect is applied to form digital tone data.

The digital tone data formed by the tone generator 17 is converted into an analog tone signal by a D / A converter (not shown) in the tone generator 17. The tone signal is amplified by the amplifier 18 and then supplied to the speaker 19 to be emitted.

FIG. 2 is a view showing an example of a navigation display on a display provided in the operation panel section 13. As shown in FIG. In the present embodiment, as the display 21 shown in FIG. 2, a bitmap liquid crystal display capable of drawing arbitrary characters, symbols, images, and the like in dot units is used, and the size of the display itself is also small. It is larger than the conventional display shown in FIG.

In the present embodiment, the liquid crystal display 21 displays the key pressing timing for the automatic performance data having a length of four quarter notes for four lines. In each row, the first beat, the second beat,... At equal intervals from left to right of the liquid crystal display 21.
Is indicated by the position of a black circle (●) 22. In the present embodiment, in addition to the black circle 22 indicating the key depressing timing, a bar line 23 indicating a bar break and a beat line 24 indicating a beat break are also displayed.

In the example shown in FIG. 2, the navigation display based on the automatic performance data of a number of quarters is shown, so that three beat lines 24 are included in one line. 1
The number of beat lines 24 in a row varies according to the time signature of the selected automatic performance data. For example, in the case of the automatic performance data of a fraction of a second, one beat is set at the center, in the case of the automatic performance data of a beat of the eighth, seven beats, and in the case of the automatic performance data of a beat of sixteenth, 15 beats are provided. Line 24 is displayed in one line.

FIG. 2A shows an initial state displayed when certain automatic performance data is selected and automatic performance is to be started. In the initial state, the key depression timings are all indicated by black circles 22. After that, when the automatic performance is started by pressing the key, the display of the black circle 22 at the corresponding timing is switched to the cross mark (+) 25 every time the key is pressed, as shown in FIG. FIG. 2B shows a state where the performance has been completed up to the third line from the top.

Next, as shown in FIG. 2 (c), when the key is actually pressed according to the navigation display of the first key pressing timing on the fourth line, the performance has already been performed at that time and is displayed by the cross 25. The navigating display on the first line is changed to a new navigating display 26 (in this case, the key depression timing is indicated by a black circle 2) according to the next performance data following the automatic performance data on the fourth line.
2 is displayed). When the automatic performance data is completed on the fourth line, such switching is not performed.

Further, as shown in FIG. 2D, the performance of the fourth line is completed, and the first press of the first line is performed according to the new navigation display of the first line switched as described above. When the key is actually pressed at the key timing, the navigation display of the second to fourth lines, which has already been performed at that time and displayed by the cross 25, is changed according to the next performance data following the performance data of the first line. Is switched to the new navigation display 27 (also displayed by the black circle 22 at the key press timing).

When the automatic performance data is completed in the newly switched first line (the fifth line in total), such switching is not performed. In such a case, the second to fourth lines may be switched to blank. If the remaining automatic performance data is less than the third to third lines, a new navigating display may be performed with the black circles 22 for the existing lines, and the blank may be displayed thereafter. FIG.
The example of (d) shows that the automatic performance data is completed in the third line of the newly switched display.

Here, the navigation display of the first line is switched when the key is pressed according to the first key pressing timing of the fourth line. However, the key pressing timing of the second and subsequent keys of the fourth line (however, , Except for the last key press timing). Also, 4
The navigation display of the first line may be switched when the key is pressed at an arbitrary timing on the second line or the third line before the line.

In the above example, the navigation display of the second to fourth lines is switched when a key is pressed according to the first key pressing timing of the first line. The switching may be performed when a key is pressed at a key timing (excluding the last key pressing timing).

The point is that, instead of switching to the next navigation display immediately before and immediately after the performance of a certain line, switching to the next navigation display has already been performed when some performance remains. Any form may be used as long as this is done. However, in the present embodiment, the unplayed timing and the played timing are distinguished by the black circle 22 and the cross 25. Therefore, if the display is switched too early, the cross 25 is not displayed.
May be shortened, and it may be difficult to understand how far the performance has been performed. Therefore, the example shown in FIG. 2 is more preferable.

In the example of FIG. 2, the navigation display of the first line is switched when the key is pressed according to the first key-depression timing of the fourth line. It is possible that In this case, since the navigation display on the fourth line is blank, it cannot be determined whether the fourth line is all rests or whether the automatic performance data is completed on the third line. Therefore, in this case, 3
The navigation display of the first line may be switched when the key is pressed at the first timing of the line.

The navigation display as described above is performed by using R in FIG.
This is performed based on the automatic performance data read from the OM 11 or the RAM 12. As described above, the automatic performance data in the ROM 11 is preset data, and the automatic performance data in the RAM 12 is user data. As shown in FIG. 3, all of the sequence of bar marks, beat marks, note data and end marks are used. It consists of.

Here, the bar mark is information indicating a bar delimiter, and also includes time signature information indicating how many minutes the automatic performance data is. This time signature information is 1
It may change in the middle of one automatic performance data. The beat mark is information indicating a beat break.

The note data includes a key number for specifying a pitch constituting a performance sound, a velocity indicating a sound volume, a step time indicating a sound generation timing from a bar mark or a beat mark, and a gate indicating a sound generation time. It consists of time. The end mark is information indicating the end of the automatic performance data. Depending on the performance data, in addition to these, repeat end information including a repeat mark indicating a repeat point is included.

The CPU 10 shown in FIG. 1 first reads a bar mark, and reads the bar line 2 according to the time signature information contained therein.
3 and the beat line 24 are displayed. Next, note data is read, and bar line 2 is read based on the step time in the note data.
A black circle 22 is displayed at a position corresponding to the step time from the position of 3 or the beat line 24. By default,
By performing such operations for four lines, a navigation display as shown in FIG. 2A is performed.

Thereafter, when the performance is actually started, the CP
Each time U10 is pressed, the U10 performs a process of switching the display of the black circle 22 indicating the key press timing at that time to the cross 25. Further, when the key is pressed, the first,
At the beginning of the line, determine whether it is the first line,
If any of these conditions is satisfied, the processing for switching the navigation display is performed as described above.

FIGS. 4 to 6 are flowcharts for explaining in detail the operation of the electronic musical instrument according to the present embodiment. In the present embodiment, the automatic performance by key depression and the navigation display are both performed based on the automatic performance data in the ROM 11 or the RAM 12. However, the read pointer on the automatic performance data includes a performance pointer and a display pointer. Is managed in two ways.

FIG. 4 is a flow chart showing an operation when sound generation processing based on automatic performance data is performed in accordance with a performance pointer. When the keyboard scanning circuit 15 detects that any key is pressed, It is what is performed.
In FIG. 4, when any key is pressed, step S
In step 1, one piece of data indicated by the current performance pointer is read from the automatic performance data stored in the ROM 11 or the RAM 12.

In step S2, it is determined whether or not the read data is a bar mark or a beat mark. If so, since this is not the note data itself, the flow advances to step S3, and the performance pointer is set to the next. And returns to step S1. On the other hand, if the read data is neither a bar mark nor a beat mark, the data is note data, and the process proceeds to step S4.

In step S4, tone generation processing is performed according to the note data indicated by the current performance pointer. In the next step S5, the display of the black circle 22 indicating the key press timing is switched to the cross 25 in accordance with the note data indicated by the current performance pointer. That is, based on the step time in the note data, the position of the black circle 22 at the timing of the currently depressed key can be known from the immediately preceding bar mark or beat mark, and this is switched to the display of the cross 25.

Then, in step S6, the process of determining the switching of the navigation display is performed, and then in step S7, the performance pointer is advanced to the next, and the key pressing process ends. The specific contents of the navigation display switching determination processing in step S6 will be described later with reference to FIG.

FIG. 5 is a flowchart showing the operation of performing the navigation display processing based on the automatic performance data according to the display pointer, and is executed when the navigation display of one bar (one line) is performed. Things. As described above with reference to FIG. 2, in the navigation display, four lines are displayed in an initial state before the performance starts, and after the performance starts, the first line or the second to fourth lines are collectively switched and displayed. You. Therefore, the display pointer advances four lines ahead of the performance pointer in the initial state, and always stays at the pointer indicating the head position of the line (which always corresponds to the bar mark) after executing the flowchart of FIG. Becomes

In FIG. 5, first, in step S11, a bar mark indicated by the current display pointer is read from the automatic performance data, and in step S12, a bar line is displayed based on the time signature information included in the bar mark. 23 and the beat line 24 are displayed. Then, in step S13, the display pointer is advanced to the next, and in step S14, data indicated by the current display pointer is read.

In step S15, it is determined whether or not the read data is a bar mark. If the read data is not a bar mark, the flow advances to step S16 to determine whether or not the read data is a beat mark. If it is a beat mark,
Proceeding to step S17, the black circle 22 indicating the key depression timing
Is advanced to the position of the next beat line 24. That is, since the display position of the black circle 22 is a position advanced by a distance corresponding to the step time from the position of the immediately preceding bar line 23 or beat line 24, it is necessary to sequentially advance the reference position every time a beat mark is read.

On the other hand, if it is determined in step S16 that the read data is not a beat mark, the data is note data. In this case, the process proceeds to step S18, and a black circle 22 indicating the key press timing is displayed at a position advanced from the position of the immediately preceding bar line 23 or beat line 24 by a distance corresponding to the step time included in the note data. .

The above step S17 or step S1
After the process of 8, the display pointer is advanced to the next in step S19, and the process returns to step S14 to read data indicated by the new display pointer. Then, step S15
To judge whether the read data is a bar mark or not. Here, if the bar mark is displayed, it means that the navigation display for one bar has been completed, and thus the navigation display process ends.

FIG. 6 is a flowchart showing the operation of the navigation display switching determination process in step S6 shown in FIG. Note that the flowchart shown in FIG. 6 is executed every time a key is pressed after the automatic performance by the key pressing is started. On the other hand, in the initial state before the start of performance, when predetermined automatic performance data is selected, the flowchart shown in FIG. 5 is repeated four times based on the performance data, so that the navigation display has already been performed for four lines. It is assumed that

In FIG. 6, first, in step S21, it is determined whether or not the current performance pointer corresponds to the first navigation display position in the third line from the top of the liquid crystal display 21, and if so, the process proceeds to step S21. Proceeding to S22, it is determined whether or not the automatic performance data on the fourth line is all rests. If the fourth line is not a full rest, the present process is terminated because it is not the switching timing of the navigation display, but if the fourth line is a full rest, the process proceeds to step S24.

On the other hand, if it is determined in step S21 that the current performance pointer is not at the first position on the third line, the process proceeds to step S23, where the current performance pointer becomes 4
Determines if it is the first position on the line. Here, when the first position in the fourth row is hit, the process proceeds to step S2.
Proceed to 4.

In step S24, the next performance data (4
It is determined whether performance data following the performance data on the line still exists, and if so, the process proceeds to step S25,
The navigation display of the first line is switched based on the performance data. That is, here, the process of the flowchart shown in FIG. 5 is performed once. Then, the process proceeds to step S26.

If it is determined in step S23 that the current performance pointer does not reach the first position on the fourth line, the process jumps to step S26, and it is determined whether or not the current pointer reaches the first position on the first line. I do. If the first position of the first line is reached, the process proceeds to step S27, and it is determined whether or not the next performance data still exists. If there is, the process proceeds to step S28, and the navigation display of the second to fourth lines is switched based on the performance data. That is, here, the processing of the flowchart shown in FIG. 5 is performed three times.

On the other hand, if it is determined in step S26 that the current performance pointer does not reach the first position on the first line, the present process is terminated because it is not the timing for switching the navigation display. Also, the above step S2
If it is determined in step 4 or step S27 that the next performance data does not exist, it is time to switch the navigation display, but it means that there is no automatic performance data to be subsequently played and the performance has advanced to the final stage. In this case, the present process is terminated.

As described above, in the present embodiment, a liquid crystal display 21 which is capable of displaying a bit map and which is larger than the conventional liquid crystal display is provided as a display provided on the operation panel section 13 and has a length of four quarter notes. The navigation display of the key depression timing is displayed for four lines. As a result, the performance can be performed while grasping not only the key depression timing immediately after the current performance but also a key depression timing that is considerably earlier, and the performance can be facilitated.

Further, in the present embodiment, not only the black circle 22 indicating the key pressing timing but also the bar line 23 and the beat line 24 are displayed. This allows you to clearly see the time signature of the currently selected automatic performance data,
It is easy to understand what beat the position of the displayed black circle 22 belongs to, and it is possible to further easily understand the key pressing timing.

Further, in the present embodiment, when a performance is performed in accordance with the navigation display of a certain line, the navigation display of the already played line is switched to a new navigation display in advance. For example, in the example of FIG. 2, the first line is newly displayed when the performance enters the last line currently being navigated, and the second and subsequent lines are displayed when the performance enters the first line from the last line. Is newly displayed. As a result, the navigation display ahead of time is always performed with a margin in advance, so that it is possible to further easily grasp the key pressing timing and to further facilitate the performance.

In the above embodiment, the navigation display for four quarter notes is displayed for four lines. However, the present invention is not limited to four lines, and any number of lines may be used as long as the lines are plural. Absent. Further, the amount displayed in one line is not limited to four quarter notes, and a longer or shorter amount may be displayed. Further, as described above, the timing of switching the navigation display is not limited to the key press timing at the top of the first row, the top of the third row, and the top of the fourth row.

Also, the marks indicating the unplayed and played key press timings are not limited to the black circles 22 and the crosses 25 described above. Furthermore, in the above-described embodiment, an example in which the automatic performance device of the present invention is applied to an electronic musical instrument having the keyboard 16, for example, an electronic piano, an electronic organ, or a keyboard musical instrument such as a synthesizer, has been described. The present invention may be applied to an electronic musical instrument having operators other than the above. Further, the automatic performance device may be constituted by an automatic performance device provided with a dedicated operator.

As described above, each function of the automatic performance device according to the present embodiment is constituted by a microcomputer system having a CPU, a ROM, a RAM, and the like in the present embodiment. R
This is realized according to a work program stored in the OM or the RAM. In this case, a program for realizing the above functions may be supplied to a computer from the outside via a recording medium, and the above functions may be realized according to the programs.

In this case, as a recording medium for storing such a program, for example, a floppy disk, hard disk, optical disk, magneto-optical disk, CD-ROM,
A CD-I, CD-R, CD-RW, DVD, zip, magnetic tape, non-volatile memory card, or the like can be used.

Further, the functions of the above-described embodiments are not only realized by the computer executing the supplied program, but also the OS (operating system) or other application software running the program on the computer. In the case where the functions of the above-described embodiments are realized in cooperation with the computer, or all or a part of the processing of the supplied program is performed by a function expansion board or a function expansion unit of a computer, thereby realizing the functions of the above-described embodiments. Such a program is also included in the embodiment of the present invention.

[0061]

As described above, the present invention relates to an electronic musical instrument having an automatic performance function for sequentially reading out and playing a predetermined amount of automatic performance data prepared in advance each time an operator is operated. When displaying the guide, the guide of the operation timing is displayed in multiple lines, so that more guide information can be displayed at once than in the past, and the guide display far from the current playing position It can be performed. As a result, the player can perform the performance while grasping the operation timing considerably before, and the performance can be facilitated.

According to another feature of the present invention, the guide display of the operated row is switched to a new guide display when the operating element is operated according to the guide display of a certain row. In addition, the guide display of the line where the performance has already been completed can be switched in advance to a new guide display after the currently performed performance, and the guide display can be always performed ahead of time. This makes it easier for the player to grasp the operation timing, and the performance can be further facilitated.

According to another feature of the present invention, the bar lines and the beat lines are displayed in addition to the display indicating the operation timing of the operator, so that the visibility of the guide display can be improved. This makes it easier for the player to grasp the operation timing.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a schematic configuration of an electronic musical instrument to which an automatic performance device according to an embodiment is applied.

FIG. 2 is a diagram showing an example of a navigation display on a display device provided in the operation panel unit of the electronic musical instrument according to the embodiment.

FIG. 3 is a diagram showing a configuration example of automatic performance data.

FIG. 4 is a flowchart showing an operation when a sound generation process based on automatic performance data is performed according to a performance pointer.

FIG. 5 is a flowchart showing an operation when performing a navigation display process based on automatic performance data according to a display pointer.

FIG. 6 is a flowchart showing an operation of a navigation display switching determination process in step S6 shown in FIG. 4;

FIG. 7 is a diagram showing an example of a navigation display on a conventional display.

[Explanation of symbols]

 Reference Signs List 10 CPU 11 ROM 12 RAM 13 Operation panel unit 15 Keyboard scan circuit 16 Keyboard 17 Sound source unit 21 Liquid crystal display 22 Mark indicating undepressed key press timing 23 Bar line 24 Beat line 25 Mark indicating depressed key press timing

Claims (6)

[Claims] 1. An electronic musical instrument having an automatic performance function for sequentially reading out and playing a predetermined amount of automatic performance data prepared in advance each time an operator is operated, wherein the electronic musical instrument has an operation function based on the automatic performance data. An electronic musical instrument, comprising: guide display means for performing a guide display of operation timing of a child, wherein the guide display means displays a plurality of lines of the guide of the operation timing. 2. The guide display means according to claim 1, wherein when the operation of the operator is performed in accordance with the guide display of a certain row, the guide display of the already operated row is changed to a new guide display based on the automatic performance data. The electronic musical instrument according to claim 1, wherein the electronic musical instrument is switched. 3. The guide display means switches a first line to a new guide display when the operation of the operator is moved to the last line currently displayed in the guide, and the operation of the operator is currently displayed in the guide. 3. The electronic musical instrument according to claim 2, wherein when the first line is shifted from the last line, the second and subsequent lines are switched to a new guide display. 4. The system according to claim 1, wherein the guide display means displays a bar line and a beat line based on the automatic performance data in addition to the display indicating the operation timing.
An electronic musical instrument according to any one of claims 1 to 3. 5. An electronic musical instrument having an automatic performance function for sequentially reading out and playing a predetermined amount of automatic performance data prepared in advance each time an operator is operated, wherein the electronic musical instrument has an automatic performance function based on the automatic performance data. Guide display means for performing a guide display of the operation timing of the child, wherein the guide display means displays bar lines and beat lines in addition to the display indicating the operation timing based on the automatic performance data. Electronic musical instrument. 6. A computer-readable recording medium on which a program for causing a computer to function as the guide display means according to claim 1 is recorded.