Patent ID: 8220065

Claim:
A content data reproducing apparatus operating as an electronic musical instrument, the content data reproducing apparatus having a temporary memory for receiving stream data from an external content provision server, the stream data including content data and reproduction condition data, the content data reproducing apparatus comprising: a content data acquisition section that acquires the content data in the stream data from the external content provision server, the content data including automatic musical performance data for performance by the electronic musical instrument; a storage control section that temporarily stores the content data acquired from the stream data by the content data acquisition section in the temporary memory; a reproduction condition acquisition section that acquires the reproduction condition data from the stream data, the reproduction condition data defining a reproduction condition for reproducing the content data; a reproduction section that reproduces the content data acquired from the stream data by the content data acquisition section, the content data read from the temporary memory; and a reproduction control section operative for supplying the reproduction section with the content data read from the temporary memory for the reproduction in case that the reproduction condition acquired from the stream data by the reproduction condition acquisition section is satisfied, and operative for erasing the content data from the temporary memory in case that the reproduction condition is not satisfied.