Patent Number: 6,294,720

Title: Apparatus and method for creating melody and rhythm by extractingcharacteristic features from given motif

Abstract: From a given melody motif is extracted a rhythm pattern consisting of aseries of rhythmic alignment of notes without a pitch representing thetime positions of the notes constituting the melody. Also extracted fromthe given melody motif are the pitches of the skeleton notes which arenotes having primary importance in the rhythm pattern in view of rhythmbeats such as the strong beat notes. A rhythm pattern which is similar tothe motif rhythm pattern is provided, for example, by searching through adata base including various rhythm patterns. The skeleton notes in thesearched similar rhythm pattern are given the pitches identified by theextracted pitches, respectively at corresponding time positions. Thenon-skeleton notes are given pitches using, for example, passing notes,unison, appoggiatura, changing notes and after notes according to themusical rules relative to the pitch given skeleton notes. Thus, a lengthof melody similar to the melody motif is obtained. In place of the similarrhythm pattern, a rhythm pattern which is contrastive to the motif rhythmpattern may be provided to obtain a length of melody contrastive to themelody motif.

Inventors: Aoki; Eiichiro (Shizuoka-ken, JP)


International Classification:

Expiration Date: 09/25/2013