Automatic accompaniment system for electronic musical instrument
AssigneeNippon Gakki Seizo Kabushiki Kaisha
InventorsHideo Suzuki, Makoto Kaneko
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Abstract
This electronic musical instrument with automatic accompaniment system comprises means for dividing each note by time division timing, means for extracting a timing equivalent to the order indicated by pattern signals from the timings corresponding to the predetermined note, and means for producing a musical tone of note corresponding to the extracted timing. The automatic accompaniment system may be applied for automatic arpeggio performance.
Claims14
An accompaniment system for an electronic musical instrument comprising:
- pulse generating means for assigning a time division timing corresponding to each note and outputting a pulse at the timing corresponding to each predetermined note;
- pattern generating means for generating a pattern signal representing tones to be produced;
- key data extracting means for extracting a pulse sent out from said pulse generating means on the basis of said pattern signal;
- and
- musical tone production means for producing the musical tone of a note corresponding to the generation timing of the pulse extracted by said key data extracting means.
An automatic arpeggio performance system for use in an electronic musical instrument having a tone generator, and being of the type wherein tones to be generated are represented by pulses at note-corresponding time slots in a time division multiplex key data signal, and wherein an arpeggio pattern is specified by a pattern signal comprising a set of values provided sequentially in time, each value designating the ordinal position, in a sequence of tones to be included in the arpeggio performance, of the arpeggio tone currently to be produced, said system comprising:
- key data extraction means for extracting from said key data signal only the pulse which has the ordinal position designated by the currently provided value of said pattern signal, and for providing the resultant extracted pulse as a time division multiplex arpeggio data signal to said tone generator for corresponding tone production thereby.
Dependencies are inferred from the claim text.