JPH06318080A - Electronic musical instrument - Google Patents

Abstract

PURPOSE:To facilitate the designation of a percussion instrument sound and to generate the desired percussion instrument sound at the timing of processing by making chords correspond to the kinds of musical percussion instruments and selecting percussion instrument sounds according to a chord musical performance. CONSTITUTION:When a rhythm solo playing mode is set by a mode setting part 20 consisting of a mode changeover switch, etc., percussion instrument sounds can be generated by making chord performance by a keyboard part 1 (lower keyboard). Then the chord performance is performed by key operation of the keyboard part 1, a chord name detection part 21 detects the name of the played chord and supplies information on the chord name to a percussion instrument sound generation part 22. The percussion instrument sound generation part 22 generate the percussion instrument sound corresponding to the chord name information obtained from the chord name detection part 21 as many times as specified by referring to a storage part 23 stored with the correspondence relation between the chords and the percussion instruments grouped at every kind of the percussion instrument sounds.

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 having a keyboard, and more particularly to an electronic musical instrument having a rhythm solo playing function capable of generating a percussion instrument sound by operating the keyboard.

[0002]

2. Description of the Related Art Conventionally, some electronic musical instruments such as electronic organs and electronic pianos are provided with a rhythm solo performance function capable of generating various percussion instrument sounds (rhythm sounds) by key operation or the like.

As a method of instructing a percussion instrument sound to be generated, for example, a different percussion instrument sound is assigned to each key of the lower keyboard of the electronic organ, and when the keys are operated, the corresponding percussion instrument sound is generated. I am trying to do it.

[0004]

However, when a percussion instrument sound is assigned to each key as described above, in order to indicate which key corresponds to which percussion instrument sound, a tone color name is provided near the keyboard. Because it is necessary to display pictures and characters such as sticking a sticker with (name of percussion instrument) attached, and it is difficult to identify the key during rhythm solo performance (when playing keys to produce percussion instrument sounds). There is a drawback that the key depression timing is deviated and the desired percussion instrument sound cannot be generated at the desired timing. In particular, this tendency became remarkable as the number of types of percussion instruments assigned to each key increased, and there were often mis-touches.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an electronic musical instrument which can easily and surely specify a percussion instrument sound by operating a keyboard and generate a desired percussion instrument sound at a desired timing.

[0006]

In order to achieve the above object, the present invention provides a mode setting means for setting a rhythm solo playing mode in which an electronic musical instrument having a keyboard generates a percussion instrument sound by a key operation of the keyboard. A chord name detecting means for detecting a chord name played by a key operation on the keyboard, a storing means for storing a correspondence between the chord name and a percussion instrument, and a rhythm solo playing mode set by the mode setting means. In this state, when a chord performance is performed by a key operation on the keyboard, the percussion instrument sound corresponding to the performance chord name detected by the chord name detection means is obtained from the storage means to generate the percussion instrument sound. And a generating means.

[0007]

According to the present invention, at the time of performing a rhythm solo, the performer can obtain a desired percussion instrument sound by playing a chord corresponding to the percussion instrument desired to be sounded by operating a key on the keyboard. If the type of percussion instrument sound is desired to be changed, another chord performance corresponding to the percussion instrument sound may be performed. As described above, according to the present invention, since the chords and the types of percussion instruments are associated with each other, it is easy to remember, and therefore it is possible to easily and surely generate the performer without displaying a picture or a character for designating the percussion instrument sound. You can pronounce the sound of a percussion instrument.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram for explaining the circuit configuration of an electronic organ in which the present invention is implemented.

In FIG. 1, a keyboard section 1, an operation panel section 2, a CPU 3, a ROM 4, a RAM 5, and a tone generating circuit 6 are respectively bus lines 10 such as a data bus and an address bus.
Are connected to each other and are configured to mutually transmit and receive data.

The keyboard section 1 is composed of an upper keyboard and a lower keyboard which are composed of a plurality of keys and key switches provided corresponding to the respective keys. The key switch is configured to detect a key press and a key release as well as a key operation speed. In the operation panel section 2, in addition to the operators for setting the tone color, rhythm, etc. of the musical sound produced by the electronic organ, the keyboard section 1 of the electronic organ is used as a rhythm solo performance instruction operator. A mode changeover switch 2a for instructing the changeover to the mode is provided.

The CPU 3 performs a scan process of each key switch of the keyboard section 1 and a scan process of each operator of the operation panel section 2 in accordance with a program stored in the ROM 4 to determine an operation state of each key of the keyboard section 1. (Key depression, key release, key number of operated key, velocity relating to key operation speed, etc.) and operation state of each operator of the operation panel unit 2 are detected, and various processes according to operation of each key or operator To execute.

The ROM 4 stores a work program of the CPU 3 and tone waveform data, and also stores automatic performance data used when performing an automatic performance. The automatic performance data is a set of automatic performance data for melody, chord, bass and drum (rhythm) part, and is stored for each rhythm type.

The ROM 4 also stores a table in which chords and percussion instrument groups grouped by type of percussion instrument as shown in FIG. 3 are associated with each other, the details of which will be described later.

The RAM 5 temporarily stores various types of information in the course of execution of various types of processing by the CPU 3, and stores information obtained as a result of various types of processing.

The tone generation circuit 6 is provided with a plurality of tone generation channels and is capable of simultaneously producing a plurality of tones. The tone generation circuit 6 outputs a PCM signal of a designated tone color from the ROM 4 based on key code information representing each key sent from the CPU 3 and tone parameter information set by the operation of each operator. The data is read out at a pitch corresponding to the key code, and the envelope, amplitude, etc. are processed with the set parameters and key pressing information to form tone data in digital data format.

The tone generating circuit 6 also includes a digital filter, a digital effect adding circuit and the like.

The tone data generated by the tone generating circuit 6 is converted by the D / A converter 7 into an analog tone signal. This tone signal is amplified by the amplifier 8 and added to the speaker 9.

FIG. 1 is a block diagram showing the functional configuration of the present invention.

In the figure, the mode changeover switch 2a
When the rhythm solo performance mode is set by the mode setting unit 20 configured by, for example, the percussion instrument sound can be generated by playing a chord on the keyboard unit 1 (lower keyboard).

When a chord (chord) is played by a key operation on the keyboard unit 1, the chord name detecting unit 21 detects the played chord name and supplies the chord name information to the percussion sound generating unit 22. .

The percussion instrument sound generation section 22 refers to the storage section 23 that stores the correspondence between chords and percussion instrument groups grouped according to the type of percussion instrument sound, and refers to the chord name detection section 21.
The percussion instrument sound corresponding to the chord name information obtained from is generated a predetermined number of times.

FIG. 3 is a diagram showing an example of the configuration of the storage unit 23.

In this configuration example, the storage unit 23 stores C,
A percussion instrument group that is grouped for each type of percussion instrument is stored in association with each chord D, E ,.
Each code is, for example, in C code, C major, C
Variation codes such as Minor, C Minor 7 and C Major 7 allow selection of any timbre in one percussion instrument group. That is, a cymbal group is associated with the C code, and if the variation code is C major, the top cymbal is selected, if it is C minor, the hi-hat is selected, and if it is C minor 7, the ride cymbal is selected. A tom tom group is associated with the D code. If the variation code is D major, high tom is selected, and if the variation code is D minor, rotom is selected. A drum group is associated with the E chord, and its variation chord is E
Bass drum is selected for major, and snare is selected for E minor. If the chord is associated with the F chord and the variation chord is the F major, then the triangle, F
If it is a minor, hand crap is selected.

In the above structure, when the performer operates a key on the keyboard section 1 to press a corresponding key of a note forming the C minor 7, a percussion instrument sound of the ride cymbal in the cymbal group is produced.

The chord name detecting section 21 and the percussion sound generating section 22 are realized by a microcomputer system including a CPU 3, a RAM 5 and a ROM 4.

FIG. 4 is a flow chart showing the processing procedure of the rhythm solo performance processing executed by the CPU 3.

First, when the CPU 3 detects in step S1 that the key of the keyboard portion 1 has been operated, it determines in step S2 whether or not the rhythm solo playing mode is selected, and the rhythm solo playing mode is selected. If not, the process proceeds to step S3.

In step S3, a process for producing a tone corresponding to the operated key with a tone color designated at that time is performed.

On the other hand, if the result of determination in step S2 is that the rhythm solo performance mode has been selected, the flow advances to step S4 to perform rhythm solo performance control processing. In this process, when the automatic performance based on the automatic performance data is being performed, the sound of the drum part (percussion instrument sound sequence) based on the automatic performance data is prohibited from being produced, and the sound of the drum part is reproduced on the keyboard of the user. Sound is generated based on the key operation of the section 1.

Then, after the chord name played by the key operation of the keyboard section 1 is detected in step S5, the tone color information of the percussion instrument corresponding to the played chord name is supplied to the musical tone generating circuit 6 in step S6. As a result, the corresponding percussion instrument sound is obtained from the speaker 9.

In the above-described embodiment, if the chord name can be detected no matter where the chord performance is performed in the keyboard section 1, the percussion instrument sound can be more easily generated. Become.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various effective modifications can be made based on the technical idea of the present invention.

[0034]

As described above, according to the present invention, the chord and the type of percussion instrument are associated with each other, and the percussion instrument sound can be selected by playing the chord. Since there is no percussion instrument sound, it is not necessary to display a picture or a character for designating the percussion instrument sound, and the percussion instrument sound can be easily and surely specified and a desired percussion instrument sound can be generated at a desired timing.

[Brief description of drawings]

FIG. 1 is a block diagram showing a functional configuration of the present invention.

FIG. 2 is a block diagram showing a configuration of an electronic organ in which the present invention is implemented.

FIG. 3 is a diagram illustrating a configuration of a storage unit.

FIG. 4 is a flowchart showing a processing procedure of rhythm solo performance processing executed by a CPU.

[Explanation of symbols]

 1 keyboard section 2 operation panel section 2a rhythm solo performance mode selector switch 3 CPU 4 ROM 5 RAM 6 tone generation circuit 20 mode setting section 21 chord name detection section 22 percussion sound generation section 23 storage section

Claims (1)

[Claims] 1. In an electronic musical instrument having a keyboard, a mode setting means for setting a rhythm solo playing mode for generating a percussion instrument sound by operating a key on the keyboard, and detecting a chord name played by the key operation on the keyboard. Chord name detection means, storage means for storing the correspondence between chord names and percussion instruments, and when the rhythm solo performance mode is set by the mode setting means, when a chord performance is performed by a key operation on the keyboard, An electronic musical instrument, comprising percussion instrument sound generation means for generating percussion instrument sound by obtaining percussion instrument information corresponding to the performance chord name detected by the chord name detection means from the storage means.