| 摘要 |
PURPOSE:To realize synchronous reproduction while automatic performance data and audio or video data are securely matched in reproduction speed and interval with each other without any complicate switch setting by a user when the automatic performance data are inputted while the reproduction data of audio or video data, etc., is varied and the automatic performance data and audio or video data are reproduced synchronously. CONSTITUTION:An electronic keyboard musical instrument part 200 and a CD player part 100 are provided when the reproduction speed of a recording medium such as a CD is varied, the variation in the reproduction speed is reflected on a clock which controls the tempo of automatic performance. The performance data when performance is carried out with reproduced music of the recording medium for the background are written in a memory in real time. Said clock is used for control in this writing. When automatic performance is carried out according to the recording contents of the memory, the device has a mode wherein the varied state of the reproduction speed of the CD and the state of the tempo and musical sound pitch of the automatic performance are automatically put back to the same states with the storage point of time and a mode wherein the reproduction speed of the CD is automatically put back to the original speed before the variation and the tempo and musical sound pitch of the automatic performance are automatically varied. |
