| 摘要 |
An electronic musical instrument is disclosed which is capable of performing an automatic accompaniment in response to the operation of the instrument by a performer. The disclosed electronic musical instrument comprises an operational unit consisting of multiple keys; chord determination means for determining a chord in an accompaniment based on the state of the operational unit; accompaniment pattern generation means for generating an accompaniment pattern consisting of note data representing a sequence of notes, such that the accompaniment pattern is generated by sequentially reading note data representing at least one note from a memory device in accordance with the progression of a song; a supplementary note data table for generating supplementary note data designating at least one supplementary note for the chord based on the chord type and note data, such that any supplementary note designated by the supplementary note data is a note other than notes designated by note data from the accompaniment pattern generation means; and a tone generator for generating chords consisting of tones designated by the note data from the accompaniment pattern generation means and supplementary note data. With the disclosed device, an automatic accompaniment can be generated which has a pleasing and natural harmony, and which is accomplished with efficient and economical utilization of available data storage resources.
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