| 摘要 |
PURPOSE:To control music performance so that music performance from respective tracks are shifted gradually, by providing a parameter input means for determining a performance follow-up characteristic, and performance follow-up characteristic forming means for the respective tracks with output characteristic being different from each other, bit by bit. CONSTITUTION:A music time for a strong rhythm which a player aims at is estimated during tapping (expression 1), a tempo is calculated with the use of expression 11 while a shift of tempo is calculated with the use of expression 111. Further, a shift of the music time is obtained by use of expression IV so that data are updated. An initial elimination module for a time shift is carried out. The time shift is eliminated by an elimination rate obtained by expression V, and is updated by use of expression VI. Then, the shift of tempo is determined. The tempo shift is eliminated with the use of expression VII, and the time shift is eliminated with the use of expression VIII. Further, the physical time and the music time are maintained so that a number MIDI clocks is obtained from the integer part of CurPos with the use of expression IX. Then, in accordance with the number of MIDI clocks, a performance point obtained by expression C is stored in memory, and accordingly, a feature inherent to every track can be created, thereby it is possible to carry out natural music performance. |
