JPS6238698U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the overall circuit configuration of an electronic musical instrument with an automatic accompaniment device according to an embodiment of the invention, and FIG. 2 is a diagram showing an example of rhythmic chords.
FIG. 3 is a diagram showing an example of a melodic code;
FIGS. 4 and 5 are plan views of a tone selection panel portion of a conventional automatic performance device for an electronic musical instrument, respectively. 12: Lower keyboard, 14: LK key coder, 20:
Tempo oscillator, 22: Rhythm pattern memory, 2
3: Rhythmic chord pattern memory, 24: Melody chord pattern memory, 25: Rhythm selection switch, 27: Rhythmic mode selection switch, 28: Melody mode selection switch,
30: LK key code processing circuit, 31: tone data memory, 32: LK sound forming circuit.

Claims (1)

[Scope of Claim for Utility Model Registration] A code information input means, a rhythm type selection means, a rhythm pattern generation means for generating a rhythm pattern signal corresponding to the selected rhythm type, and a code inputted from the code information input means. means for forming pitch information that specifies the pitch of one or more musical tones to be produced based on the information and rhythm pattern signals sequentially generated by the rhythm pattern generating means; and a predetermined tone corresponding to the pitch information. means for forming a musical tone; and a means for automatically changing the tone to a tone corresponding to the rhythm type when the chord specified by the chord information or its constituent notes is automatically carved and produced according to the rhythm pattern signal. An automatic accompaniment device for an electronic musical instrument, characterized in that it is provided with means for switching to.