JP2670944B2 - Electronic keyboard instrument - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic keyboard instrument having an automatic performance means for reading out performance data and performing the performance, and more particularly to a detachable connection with a main body having a keyboard. The present invention relates to an electronic keyboard instrument capable of automatically playing a large number of songs by exchanging the storage means by storing performance data in the storage means. 2. Description of the Related Art A conventional electronic musical instrument of this type is equipped with a removable storage device for storing automatic performance data for one song in accordance with a song, and an automatic storage device stored in the storage device. The automatic performance is performed based on the performance data. However, in such an electronic musical instrument, it is necessary to prepare a storage device for each music piece, and the storage device must be replaced according to the musical piece to be played, which is very complicated. Met. The present invention has been made in view of the above-mentioned problems, and stores automatic performance data for a plurality of music pieces in one storage device so that the music pieces can be selected by a key of an electronic keyboard instrument. The purpose is to provide a keyboard instrument. To achieve this object, the electronic keyboard instrument according to the present invention stores automatic performance data for a plurality of songs and is detachably connected to the electronic keyboard instrument body. The storage means also has a position data area in which position data indicating the storage position of the automatic performance data of each song is stored, and a plurality of keys used for manual performance, and the plurality of keys. A keyboard capable of individually designating a plurality of automatically performed musical pieces, and referring to the position data area in the removable storage means based on the designation of the musical piece by the operation of the keyboard, Detecting means for detecting a storage position of automatic performance data corresponding to a song, and automatic performance data for a plurality of songs stored in the storage device based on the storage position detected by the detecting means. Read means for reading automatic performance data corresponding to a music piece designated by operating the keyboard, and automatic performance means for automatically performing performance based on the automatic performance data read by the reading means. Is characterized by. The storage means in which the automatic performance data for a plurality of songs are stored is detachably connected to the main body of the electronic keyboard instrument. When performing automatic performance, this storage means is connected to the main body of the electronic keyboard instrument. Then, using the keyboard, a song to be automatically played is selected from a plurality of played songs. Here, the keyboard is used not only for manual performance but also for individually specifying a plurality of performance music pieces for automatic performance. The storage means stores the automatic performance data itself for a plurality of songs, and has a position data area, and also stores position data representing the storage position of the automatic performance data of each song. Therefore, when reading the automatic performance data of the music designated by the keyboard, first, the position data area in the storage means is referred to, the storage position of the automatic performance data corresponding to the designated music is detected, and the memory is stored. The automatic performance data is read based on the position. An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a perspective view of an electronic keyboard instrument according to an embodiment of the present invention. In FIG. 1, the ROM 1 storing the automatic performance data for a plurality of songs can be attached to and detached from the ROM box 2. Further, on the panel surface of the electronic keyboard instrument, a song title selection switch 3 that is turned on only when selecting a song, a start switch 4 that controls the start of automatic performance, and a tone and rhythm of automatic performance are displayed. A liquid crystal display 5, a keyboard 6 having a plurality of keys, a key press indicator 7 arranged for each key of the keyboard 6 to display a pressed key by lighting, a rhythm selection switch 8 and a tone color selection switch 9
Etc. are provided. The keys of the keyboard 6 are assigned music numbers such as number 1, number 2, and so on in order from the leftmost key (not shown). FIG. 2 shows a data format 1a in the ROM 1 which stores automatic performance data for a plurality of songs. The ROM 1 stores automatic performance data stored in the order of progression of music.
Storage areas 1-1, 1-2, ...
1-n and a music title start address area 1-0 for storing address data representing the start address of the automatic performance data of each music. FIG. 3 shows a block diagram of the electronic keyboard instrument of FIG. In the electronic keyboard musical instrument of this embodiment, the keyboard 6
Is used during normal manual performance,
It is also used when selecting a song for automatic performance. ROM1
As described above, the address data indicating the start address of the automatic performance of each music and the automatic performance data for a plurality of music are stored. Although not shown, the ROM 1 has R
The OM-specific score (book) is prepared as a pair, and the music number corresponding to the music stored in the ROM 1 is written in this score. Here, when selecting a song, the key with the song number of the song to be played on the keyboard 6 is depressed while depressing the song name selection switch 3. Then keyboard 6
The song number data from the song start address is stored
Road (When you input the song number data, the automatic performance data of the song will be
RO holding the start address of the stored area
The circuit for outputting the address on M1) 10 is supplied to the address signal AD corresponding to the music number data from this circuit 10.
1 is supplied to the A input terminal of the address selector 11.
Since the input A of the selector 11 is selected by the song title selection switch 3, the address signal AD1 is selected and R
The start address signal of the music selected by the keyboard 6 is read from the music title start address area 1-0 (FIG. 2) of the OM 1 and stored in the latch circuit 12 in the loaded state by the music title selection switch 3. Next, when the start switch 4 is turned on,
The head address signal stored in the latch circuit 12 is taken into the address control circuit 13. At this time, selector 1
In No. 1, since the music title selection switch 3 is already off, the B input is selected and the head address signal AD2 stored in the address control circuit 13 is supplied to the ROM1. The ROM 1 outputs the automatic performance data from the predetermined automatic performance data area of the ROM 1 as shown in Table 1 based on the address designated by the head address signal from the address control circuit 13. [Table 1] At the first address position of the automatic performance data of each music, tone color data and rhythm data indicating the tone color and rhythm of the automatic performance tone are stored, followed by a melody tone, a chord, etc. Pitch data and note length data indicating the note pitch and note length. The tone color data output from the ROM 1 is applied to the switching control circuit 15 via the tone color register 14.
The switching control circuit 15 is initially set when there is an input from the tone color register 14, outputs the tone color data added from the tone color register 14, and thereafter, when the tone color selection switch 9 on the panel surface is operated, the tone color based on the operation is output. The data is switched and output with priority over the tone color data. Further, the rhythm data output from the ROM 1
Data is added to the switching control circuit 17 via the rhythm register 16. Similar to the switching control circuit 15, the switching control circuit 17 is initially set when an input is made from the rhythm register 16, outputs the tone color data added from the rhythm register 16, and then operates the rhythm selection switch 8 on the panel surface. Then, the rhythm data based on the operation is switched and output in preference to the rhythm data. The tone color data output from the switching control circuit 15
The data is added to the display control circuit 18 and the tone color control circuit 19, and the rhythm data output from the switching control circuit 17 is added to the display control circuit 18 and the rhythm selection control circuit 20. The display control circuit 18 is based on the inputted tone color data and rhythm data, and the characters corresponding to the tone color data and the rhythm data (for example, in the case of tone color data, an organ,
In the case of rhythm data, such as piano, froth, etc., dot information indicating waltz, march, rock, etc.) is output to the liquid crystal display 5, and the liquid crystal display 5 produces a tone color based on the input dot information. And the rhythm is displayed on the LCD. The pitch data output from the ROM 1 is added to the key press indicator 7 and the tone forming circuit 22 via the pitch register 21. The key-depression indicator 7 is composed of a lamp provided for each key, and displays the key to be depressed by turning on the lamp corresponding to the input pitch data. The tone forming circuit 22 includes a sound source section for generating sound source signals corresponding to various pitches, an opening / closing section for controlling opening / closing of the sound source signal, a tone color adding section, etc., and the pitch register 21 in the opening / closing section. Based on the pitch data input via the keypad and the key information input by key depression on the keyboard 6, a corresponding one of the sound source signals generated from the sound source section is selectively opened and closed, and the selected sound source is selected. A tone signal is formed so as to give a desired tone color to the signal through a tone color adding section. The tone color adding section can apply various tone colors such as organ, piano, flute, and violin by the output from the tone color control circuit 19. The musical tone signal formed by the musical tone forming circuit 22 is applied to a speaker 24 via an amplifier 23, where it is sounded as a musical tone. The autorhythm device 25 is used for automatic rhythm performance, and the rhythm selection control circuit 2
A rhythm sound signal indicating various rhythm instrument sounds corresponding to the rhythm selected by 0 is generated according to the tempo clock TCL oscillated from the tempo oscillator 26. This rhythm sound signal is also amplified by the amplifier 23 in the same manner as described above, and is produced as a rhythm sound by the speaker 24. On the other hand, the timing of reading the automatic performance data after the second tone is controlled by the output to the note length counter 24. That is, the note length counter 27 is the tempo oscillator 2
The tempo clock TCL oscillated from 6 is counted, and when the count value matches the code length data input from the ROM 1, a code length match signal (pulse signal) is output from the output terminal EQ and reset. The address control circuit 13 counts up when the note length matching signal is applied to the count-up input U, and outputs an address signal for reading the automatic performance data of the next address from the ROM 1. It is preferable that the tempo clock TCL in the note length counter 27 starts counting at the time when the keyboard 6 is first depressed. Further, it is preferable that the tone signal relating to the tone data input via the tone pitch register 21 in the tone forming circuit 22 is formed at the same point as the above. As described above, according to the present invention, the automatic performance data for a plurality of songs are stored in the detachable storage means, and the storage position indicating the storage position of each song. Since a position data area for storing data is also provided, it is possible to quickly access the designated music. Further, since this position data area is in the same removable storage means as the automatic performance data, the correspondence between the designated music and the performance music is not broken even if the storage means is replaced. Further, how many pieces of performance data are stored varies depending on the storage means, but since the selection can be made by the keys of the keyboard without providing a separate piece of music title selection switch, the maximum number of pieces of music title selection switch can be selected. Or set it together
It is possible to eliminate the waste of storing only the number of songs corresponding to the number of song selection switches even though the storage capacity is surplus.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of an electronic keyboard instrument to which the present invention is applied. FIG. 2 is a view showing an example of automatic performance data used in the present invention. Block diagram showing an embodiment of an electronic keyboard instrument according to the present invention [Explanation of reference numerals] 1 ... storage device (ROM), 3 ... song title selection switch, 5 ...
Liquid crystal display, 6 ... keyboard, 7 ... key press display, 8 ... rhythm selection switch, 9 ... timbre selection switch, 12 ... latch circuit, 13 ... address control circuit, 15, 17 ... switching control circuit, 18 ... display control Circuit, 19 ... Tone control circuit, 20 ...
Rhythm selection control circuit, 22 ... Music forming circuit, 25 ... O
Triism device, 26 ... Tempo oscillator, 27 ... Note length counter.

Claims (1)

(57) [Claims] A position data area that stores automatic performance data for a plurality of songs and is detachably connected to the electronic keyboard instrument body and that stores position data indicating the storage position of the automatic performance data for each song. And a keyboard that has a plurality of keys used for manual performance, and that can individually specify a plurality of musical performances for automatic performance by the plurality of keys, and a musical performance by operating the keyboard. Based on the designation, the detection means for referring to the position data area in the removable storage means to detect the storage location of the automatic performance data corresponding to the designated song, and the storage location detected by the detection means Reading means for reading automatic performance data corresponding to a music piece designated by the operation of the keyboard from automatic performance data for a plurality of music pieces stored in the storage device; An electronic keyboard instrument comprising: an automatic performance means for automatically performing a performance based on the automatic performance data read by the output means.