I’m making a live set using a machinedrum and an A4 - I make the drum patterns in corresponding banks/ patterns on the MD. Ive found when the A4 is the master clock the program change messages to the MD are always late by about a bar. When the MD is boss, it works fine.
Unfortunately, the A4 has a much tighter clock than the MD - it barely loses any time over long recordings - so it would be better as the clock source. Iis anyone using the A4 as the master clock and got program changes working correctly?