Automatic accompaniment apparatus

Details Automatic accompaniment apparatus Automatic accompaniment apparatus

1992-02-27

1993-06-01

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84DIG22, G10H 138, G10H 700

Patent

active

052161889

ABSTRACT:
An automatic accompaniment apparatus is adopted to a keyboard-type electronic musical instrument. Herein, the chord constituent notes and bass note of the subharmonic chord (or fractional chord) are detected and separated from the notes which are designated by the performer who depresses the keys of the keyboard. In response to certain chord note, particularly root of the chord, the desirable chord pattern (or chord type) is selected from the predetermined chord patterns memorized in a data table. This data table can be memorized with relatively small memory capacity. Thus, it is possible to accurately detect the subharmonic chord with small memory capacity. Then, the desirable subharmonic chord is automatically sounded as the accompaniment in accordance with the selected chord pattern and the detected bass note.

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