| 摘要 |
<P>PROBLEM TO BE SOLVED: To make contents of the service offered to a user meet the user's intention. <P>SOLUTION: The music playback system 1 has a reproduction part 102 for reproducing a performance song with performance song data including song data and image data, and a user-based preference database 3071 for storing user classification information where a plurality of user IDs are associated with a plurality of unit IDs. Based on the user ID of a registered user acquired through a prescribed operation by himself/herself, the system 1 acquires a first unit ID associated with him/her following the user classification information stored in the user-based preference database 3071, and determines consistency between a singer ID included in his/her singing history information stored in a singing history table 1071 and corresponding to his/her music piece selection operations for performance songs and the first unit ID acquired for him/her. <P>COPYRIGHT: (C)2012,JPO&INPIT |
