MIDI_SYSEX_START
midiseq_out(md, (uint8_t[]){MIDI_SYSEX_START}, 1, 0);
if (c != MIDI_SYSEX_START) /* must start like this */
e = SEQ_MK_SYSEX(1,[0]=MIDI_SYSEX_START,1,2,MIDI_SYSEX_END);
if (tp->status == MIDI_SYSEX_START) {