Apparatus for solo harmony transfer in an electronic musical ins

Details Apparatus for solo harmony transfer in an electronic musical ins Apparatus for solo harmony transfer in an electronic musical ins

1981-02-24

1983-01-18

Truhe, J. V.

Music

Instruments

84 117, 84DIG22, G10F 100

Patent

active

043686583

ABSTRACT:
In an electronic musical instrument having a first and second array of keyboard switches apparatus is provided for providing fill-in notes sounded by tone generators assigned to the first keyboard. The fill-in notes are selected by selecting one of a library of stored chord types which is closest to the notes played on the second keyboard combined with the highest frequency note played on the first keyboard. The closest decision is made by processing the keyed switch data with two sets of matched filters. The chord type decision is made to correspond to a matched filter combination which produces a maximum output response. A root note is also chosen for the selected chord type. The selected chord type and chosen root note are used to provide the fill-in notes.

REFERENCES:
patent: 4112802 (1978-09-01), Robinson et al.
patent: 4120225 (1978-10-01), Dietrich et al.
patent: 4187756 (1980-02-01), Robinson et al.
patent: 4267762 (1981-05-01), Aoki et al.
patent: 4296665 (1981-10-01), Howell

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