| 摘要 |
A display 21 for setting atone control parameter is disposed on an operation panel of an electronic musical instrument. Function and subfunction operator groups 23, 24 are arranged in parallel in two rows along a longer side of display 21. Function operator group 23 corresponds to each function in the first hierarchy, and subfunction operator group 24 corresponds to each subfunction in the second hierarchy that is designated for each function in the first hierarchy. Display 21 displays a tone control parameter that is to be set by the operation of a parameter setting operator group 25 and the characters representing each function and each subfunction of the function and subfunction operator groups 23, 24. By operation of each operator group 23, 24, the functions and the subfunctions are switched hierarchy by hierarchy, whereby a desired tone control parameter can be easily set to be a desired value or can be easily changed.
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