| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication karaoke system capable of attracting many customers by offering various kinds of services with a limited number of members as a unit. SOLUTION: A server device 20 comprises: an SNS database 120 for storing information regarding a performance music piece by relating it to its user's identification information, as the information regarding karaoke performance of each user; an SNS registration control means 130 for registering a plurality of users stored in the SNS database 120 as friends by relating each other; and a friend candidate extracting means 131 for extracting the plurality of users stored by similarly relating them to the performance music piece which is stored by relating it to the user in the SNS database 120, as a candidate of friend registration by the SNS registration control means 130 corresponding to a prescribed user. Thereby, the friend registration is fully utilized by attaining a system capable of extracting the user who is interested in a common performance music piece as the friend candidate. COPYRIGHT: (C)2009,JPO&INPIT
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