Abstract: In a synchronous information reproduction apparatus, a receiving section sequentially receives a clock signal. A storing section stores object information to be sequentially reproduced from a series of reproduction points. A reproduction point generating section generates location information indicative of a reproduction point of the object information stored in the storing section. A reproducing section reads and reproduces the object information from the storing section based on the reproduction point generated by the reproduction point generating section. A synchronizing section synchronizes an incremental speed of the reproduction point generated by the reproduction point generating section with a reception timing of the clock signal based on a reception time interval of the clock signals. An outputting section outputs contents of the object information reproduced by the reproducing section.

Abstract: Image information representing a manner of playing a piece of music can be diplayed while playing the piece of music. Performance image information is created, which enables displaying an image showing a manner of playing a piece of music while playing the piece of music. A motion component database is created, which comprises a plurality of motion components each created for each musical instrument or each part and stores a trajectory of a fraction of motion of a player and a musical instrument in one of at least one performance method being typical of the each musical instrument or the each part. Motion descriptive information is created, which designates one of the motion components corresponding to performance information on the piece of music to be played and a designated one of the at least one performance method, on a time schedule determined by a predetermined musical time unit of the piece of music to be played.