| 摘要 |
An electronic musical instrument easily manageable about how often performance is carried out a day, a week, or a month by managing the participation (attendance) of each participator. A controller (1) records the performance history corresponding to the permanence operation of each performance terminal (2). A facilitator records the attendance by determining that a performance terminal (2) to which a performance part is assigned as being "present" and a performance terminal (2) to which a performance part is not assigned as being "absence" and records the number of key press of each performance terminal (2) from the start of a performance to its end, the average press intensity (average velocity), and so forth. The value of each recorded item is outputted as text data. Since the value of each item for each performance is recorded, it is easily managed how often each user participates a day, a week, or a month.
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