Rhythm sensations can be represented in time to music by using the entire body and to create powerfulness and rhythm sensations. Stepping position indication data which is set by a rhythm setting section (107) is read from a stepping position indication data memory (105), and the stepping position instruction contents are scrolled and displayed on a monitor (3) by a scroll display control section (110), thereby performing instructions of the stepping position and the stepping operation timing. When the fact that a player steps on a step-on base section (13) in accordance with the display contents of the monitor (3) is detected by a cable switch (23) and this is input from a stepping operation monitor section (111), a score proportional to the timing deviation is calculated by an amount-of-deviation detection/totaling section (106), and next, an evaluation is performed by the rhythm setting section (107). Then, the next stepping position indication data is set according to the evaluation result. IMAGE
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