Automatic chord control circuit for electronic musical...

Details Automatic chord control circuit for electronic musical... Automatic chord control circuit for electronic musical...

G - Physics

10

H

84/1.51

G10H 5/00 (2006.01) G10H 1/38 (2006.01) G10H 7/00 (2006.01)

Patent

CA 1074160

AUTOMATIC CHORD CONTROL CIRCUIT FOR ELECTRONIC MUSICAL INSTRUMENTS Abstract of the Disclosure An automatic chord control system is disclosed which is readily incorporated in an electronic organ by means of large scale integrated circuit chips. The auto- matic chord control causes a chord or group of notes within an octave played on the lower manual keyboard to play through the upper manual voice in the octave below the lowest melody note being played on the upper manual key- board. The proposed automatic chord control system has two operating modes. In the first mode, the notes trans- ferred to the upper manual are generated directly by the keys activated on the lower manual. In the second mode, the notes transferred to the upper manual are generated by a set of preset chords activated by single lower manual keys.

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