| 摘要 |
PROBLEM TO BE SOLVED: To suppress the influence of an afterimage on a display means upon sight by thinning out a series of plural display data every other prescribed number of data and supplying the thinned data to the display means when a tempo specified by a tempo specification means is faster than a prescribed tempo. SOLUTION: A metronomic sound generation circuit 24 refers to the value of a variable and generates a metronomic sound of a tempo corresponding to the variable value. When any one of a series of plural display data stored in a ROM 14 is supplied, an LCD 22 executes display based on the supplied display data. When a comparing means judges that the tempo specified by the circuit 24 is slower than the prescribed tempo, a series of plural display data stored in the ROM 14 are controlled so as to be successively supplied. When the specified tempo is faster than the prescribed tempo, the display data stored in the RUM 14 are thinned out every other prescribed number of data and the thinned data are supplied. |
