According to the code, we only support these MMC commands:
The code knows about, but does not yet implement these:
LOCATE IF (That's LOCATE with first param = 0)
Wikipedia : MIDI_Machine_Control also lists:
I see in addition to MMC commands there is something called
MMC response. I must read more about this, I don't think
we do it in MusE...
So for now you must track-arm and rec-ready MusE manually.
It may be relatively easy to add the record arm/ready support...