The electronic apparatus comprises a processing unit for classification and storage of a plurality of musical compositions, and a control device, such as a keyboard or MIDI connection, for performing of sequences of connoting musical events, to be stored and related to each single musical composition....http://www.google.co.uk/patents/US6096961?utm_source=gb-gplus-sharePatent US6096961 - Method and electronic apparatus for classifying and automatically recalling stored musical compositions using a performed sequence of notes
