| 摘要 |
PURPOSE:To stop the use of all at end time determined on the side of a device installed shop by inhibiting reserved music from being registered irrelevantly to the intention of a user when the performance end time of the reserved music exceeds the use end time of the music reproducing device. CONSTITUTION:A decision means M9 compares (TEND-TR) with (TSAN+Ti), where TEND is use end time, TR current time, Ti the performance time of currently reserved music, and TSAM the total performance time of pieces of music which are reserved and registered. When the former is less than the latter, the currently reserved music is prevented from being registered. Namely, when the performance end time of the currently reserved music exceeds the use end time TEND of the music reproducing device, an inhibiting means M10 inhibits the reserved music from being registered automatically. Therefore, even when many pieces of reserved music are registered, the performance of all the pieces of reserved music which are registered ends before the use end time determined on the side of the device installed shop. |
