PROBLEM TO BE SOLVED: To easily retrieve a musical piece, when performing high level music selection capable of selecting a musical piece which is difficult compared to a user's own singing level.;SOLUTION: When an arbitrary user performs the high level musical piece selection, a wide range singing level data 45b which is managed by a singing level managing means 35 classified by a musical piece is obtained, and based on a user ID of the user, a singing level data 45c classified by a user, which is managed by a singing level managing means 37 classified by a user is obtained. Only a musical piece of a wide range singing level, which is difficult compared to the user's singing level classified by a user is displayed in a list as a selection object on a display section, in a music selection display control means 22c.;COPYRIGHT: (C)2010,JPO&INPIT
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