| 摘要 |
PURPOSE:To automatically modify the time of a musical performance by a sequencer without losing the balance of music of automatic performance data by specifying an optional time according scheduled to time of a commercial film, etc. CONSTITUTION:The value obtained by multiplying the time of one beat, determined by individual tempo information of performance data read out of a floppy disk by the number of beats t<:; be played at the corresponding tempo is integrated to calculate a total performance time TTM1 to initially be set. Then once a specified performance time TTM2 is indicated, the ratio Q=TTM2/TTM 1 of the performance time is calculated and initially set individual tempo information TMPj (j=0, 1, 2...n) is multiplied by the calculated ratio to vary the tempo (S160-S210). When a performance mode is specified after the tempo is thus automatically varied, the automatic performance is carried out according to the varied tempo information TMP'j (j=0, 1, 2...n). |
