[. . . ] [. . . ] When this clock is suspended longer than 666 msec (except for receiving the bulk data), the on-going sound turned OFF. Bulk data of 1 voice This message requests reception with the same format as transmission when MIDI channel numbers are corresponded, system information is available, and Memory protect is off. (v : ignored) Bulk data of 32 voices This message requests reception with the same format as transmission when MIDI channel numbers are corresponded, system information is available, and Memory protect is off. Parameter change Voice parameter and function parameter request reception with the same format as transmission when MIDI channel numbers are corresponded, system information is available, and Memory protect is off. This message requests the performance data of the DX1 A-side. (LS 4 bit are ignored. ) ignored ignored (add 94th byte and make the complement on 2) (ignored) [. . . ] [. . . ]