Music – Instruments
Patent
1978-10-17
1980-08-19
Witkowski, S. J.
Music
Instruments
84 124, 84DIG12, 84DIG22, G10H 138, G10H 142
Patent
active
042178045
ABSTRACT:
An electronic musical instrument having a channel processor. The channel processor includes a tone production assignment circuit and an automatic arpeggio circuit. The tone production assignment circuit includes a key code memory circuit of a plurality of channels and an assignment control unit. A specific channel among the channels is used exclusively for the automatic arpeggio performance while the other channels are used for ordinary respective tone production corresponding to depressed keys by an ordinary key assignment operation responsive to depression of the keys. The automatic arpeggio circuit produces key codes one after another for the automatic arpeggio channel in accordance with the key codes already assigned to the respective ordinary channels and with arpeggio constituent orders in a sounding pattern. The arpeggio sounding pattern which is selected in response to a rhythm to be played contains binary data representing the arpeggio constituent orders. The arpeggio constituent orders herein mean the orders of the locations of the notes constituting the arpeggio alignment, the order being counted from the lowest one of the depressed keys in a predetermined keyboard range.
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Aoki Eiichiro
Nakada Akira
Okumura Takatoshi
Oya Akiyoshi
Uchiyama Yasuji
Nippon Gakki Seizo Kabushiki Kaisha
Witkowski S. J.
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