Simple music performance system, music data supplier and computer program installed in the music data supplier

摘要

At least one musical instrument (2), a server computer (1), a mobile telephone (3) and a communication network (8) form a music performance system; the owner has registered the musical instrument (2) with a client database (5) in the server computer (1), and a user transmits (L1) a request for music data distribution service to the server computer (1) through the mobile telephone (3); upon reception of the request, the server computer (1) searches the client database (5) to see whether or not the owner has contracted the provider for the music data distribution service; when the server computer (1) finds the owner in the client database (5), the server computer (1) transmits (L6) a set of music data codes directly to the musical instrument (2) so that the mobile telephone (3) is shareable between the musical instrument (2) and another musical instrument.