Automatic accompaniment device with chord note adjustment

Details Automatic accompaniment device with chord note adjustment Automatic accompaniment device with chord note adjustment

1992-02-27

1993-06-15

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84DIG22, G10H 138

Patent

active

052201228

ABSTRACT:
The automatic accompaniment device is constructed such as to convert tone data of a preset accompaniment pattern according to inputted or detected chords so as to generate matched accompaniment sounds. The tonality of performed music is detected by comparison between constituent notes of detected 7th chord or 7sus4 chord and those of a preceding detected chord, based on occurrence of note coincidence therebetween. A particular note name is determined for adjustment based on the detected tonality. The device designates a key code of chord constituent note corresponding to the determined note name so as to adjust the key code, thereby performing automatic performance in conformity with the tonality in natural manner.

REFERENCES:
patent: 4508002 (1985-04-01), Hall et al.
patent: 5056401 (1991-10-01), Yamaguchi et al.

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