| 摘要 |
PROBLEM TO BE SOLVED: To display a set of music related to a user's desired music in a karaoke selection device. SOLUTION: The karaoke selection device includes a user interface for displaying information to a user and receiving operation input by the user, and a music index data base which aggregates information of a music ID, a music name and an artist name, and a related music data base which aggregates information of a clue music ID and a related music ID set, are accessed. When a performance reservation electronic sentence including one music ID which is extracted from the music index database according to user's input is output to the karaoke device, the related music ID set in which the performance reserved music ID is the clue music piece ID, is extracted from the related music database, and the music name and the artist name of the music ID set are displayed in a list according to the music index data base, and operation input for selecting one music is selected from the display list is received, and the performance reservation electronic sentence including the selected music ID is output to the karaoke device. COPYRIGHT: (C)2008,JPO&INPIT
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