| 摘要 |
A tempo setting apparatus and a parameter setting apparatus for an electronic musical instrument. The tempo setting apparatus automatically plays out a rhythm based on a set of rhythm performance data selected from plural sets of rhythm performance data stored in storage means. The tempo setting apparatus includes means for defining a standard tempo value for a rhythm to be played-out based on the selected rhythm performance data, a tempo setting device having a pointer that is movable in a predetermined range with a click at a null adjusting point, calculating means for associating the standard tempo value defined by the standard tempo defining means with an adjusting point of the tempo setting device and for calculating a new tempo value based on the standard tempo value and in accordance with an offset of the indicated position of the tempo setting device from the null adjusting point, and control means for setting the tempo value calculated by the calculating means as a tempo value for a rhythm to be automatically performed based on the predetermined rhythm performance data. The parameter setting apparatus includes a tempo defining means for defining a tempo value for a rhythm performance, a mode switch for instructing a mode change to the system set mode, and control means for accomplishing the mode change to the system set mode only if a minimum or maximum tempo value is defined by the tempo defining means when a mode change to the system set mode is instructed by the mode switch.
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