An information processing system has a music data base. The music data base stores homophonic reference sequences of music notes. The reference sequences are all normalized to the same scale degree so that they can be stored lexicographically. Upon finding a match between a string of input music notes...http://www.google.fr/patents/US5963957?utm_source=gb-gplus-shareBrevet US5963957 - Bibliographic music data base with normalized musical themes
Bibliographic music data base with normalized musical themes
