| 摘要 |
PROBLEM TO BE SOLVED: To provide a Karaoke system capable of distributing a highly practical ranking on the basis of performance results in a prescribedd period. SOLUTION: The center device of the Karaoke system comprises: a statistics means 86 which takes the statistics of a plurality of rankings for every period on the basis of the performance results stored in a storage device 80; an adjustment means 88 which performs adjustment by excluding pieces of music within a prescribed order in prescribed periods among the plurality of rankings for every period to be subjected to the statistics by the statistics means 86 from the ranking of other periods; and a distribution means 90 which distributes the ranking adjusted by the adjustment means 88 to Karaoke devices 16. Thus, even when a period and a purpose being an object are changed, the center device can properly create an appropriate ranking according to the request. COPYRIGHT: (C)2007,JPO&INPIT
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