PURPOSE: To attain effective and diversified picture display and music laying in the case of singing a song by retrieving specific information, comparing a reproduction time added to specific information with a time commanded for reproduction of new music information and displaying it when the result is within a set time.

CONSTITUTION: A playing music number and a playing end time are stored in a memory 12 by the control of an MPU 20. An elapsed tire TP after the end of calculation is obtained from the subtraction between a playing end time T1 of a fetched history data and a current time T0 fetched from a timer 29. Moreover, whether or not the elapsed time TP elapses for a prescribed time is discriminated. When a same playing music is reserved again before lapse of a prescribed time, the check in the elapsed time to a history data of a transfer address is finished and the playing music number of succeeding addresses is sequentially fetched. When the reserved playing music is not in excess of the prescribed time, a message representing it and the elapsed time are displayed on a display section 28.