Electronic musical instrument with plural tone production channe

Details Electronic musical instrument with plural tone production channe Electronic musical instrument with plural tone production channe

1982-05-14

1984-05-29

Witkowski, Stanley J.

Music

Instruments

84 117, 84DIG22, G10H 106, G10H 138

Patent

active

044507453

ABSTRACT:
In an electronic musical instrument there are provided a channel processor which assigns tone production of a depressed key to one of musical tone producing channels which are smaller in number than total keys. The keys and channels are divided into groups respectively so that keys of one group are assigned to channels of a specific group. The relationship that which key group corresponds to which channel group is changed by an assignment mode changing circuit. Also a switch is provided for selecting a performance mode which switches the operation of the assignment mode changing circuit. Consequently, in one a performance mode all tone production channels are used solely by an upper or lower keyboard or key range while under another performance mode only some of the tone production channels are utilized for a particular keyboard or key range and the remaining tone production channels are utilized by the other keyboard or key range. Colors of musical tones produced by the tone production channels are switched according to the mode of tone production assignment.

REFERENCES:
patent: 4148017 (1979-04-01), Tomisawa
patent: 4192211 (1980-03-01), Yamaga et al.
patent: 4213366 (1980-07-01), Niimi et al.
patent: 4217804 (1980-08-01), Yamaga et al.
patent: 4227432 (1980-10-01), Bagus
patent: 4228712 (1980-10-01), Uchiyama et al.
patent: 4235142 (1980-11-01), Nakada et al.
patent: 4275634 (1981-06-01), Imamura et al.

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