| 摘要 |
PROBLEM TO BE SOLVED: To efficiently transmit a message between music useful for a user, by outputting the message between music of proper content to the user. SOLUTION: The Karaoke device includes: a log-in user managing means 27 for specifying the user logging in the Karaoke device 10 in a current time, based on a user ID, to be managed; a message between music storage means 33 for storing the message between music in a prescribed storage part; a viewing and listening management means 28 for managing the user when the optional user logs in, as a not-yet viewing and listening person, in a viewing and listening management list 24b, as to the user logging currently in the Karaoke device 10, and for managing the not-yet viewing and listening person by changing the not-yet viewing and listening person into the viewing and listening person, when the message between music is output; and a message between music output control means 29 for referring to the viewing and listening management list 24b everytime the number of the performed musical pieces reaches a prescribed number, and for controlling the message between music not to be output, only when a ratio of the not-yet viewing and listening persons comes to a prescribed reference value or more. COPYRIGHT: (C)2009,JPO&INPIT
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