| 摘要 |
PURPOSE:To prevent the occurrence of a defective state due to the omission of a musical instrument play program by giving a command to a musical instrument play control signal decoding means to transmit a sound generation stop command signal in case the contents of an operation command show a reading action command having a reading order different from the writing order. CONSTITUTION:When a manual search command is produced in a play mode of a player, a system controller 7 decides whether a transmission signal is supplied from a MIDI (musical instrument digital interface) decoder 22 or not. If so, the track jumps are suppressed for the time being. If not, a jump command is given to an arithmetic control part 5. When the end of a track jump is detected with a detection of a clock of a tracking servo or a control code supplied from a subcode error correction circuit 20, a command is given to the decoder 22 to send an all-note-off command so that the note-off messages are sent to all MIDI channels. Thus it is possible to avoid such a defect state where the generation of sounds could not be stopped.
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