A music piece reproduction device comprises a recording section (12) for recording a plurality of music piece data each possessing a sound data file and a beat guide file containing information on the sound data file, and a control section (1) for controlling so as to connect the sound data files recorded...http://www.google.es/patents/US20070227337?utm_source=gb-gplus-sharePatente US20070227337 - Music Composition Reproduction Device and Composite Device Including the Same
Music Composition Reproduction Device and Composite Device Including the Same
