I see that you can set Auto-Play to disable using a sysex message with MIDI OX.
Set Sequencer Auto Play : F0 00 20 32 00 01 50 valid 1D D0 F7
D0: 0x00 → Disable / 0x01 → Enable Default Value: 0x01
How can I do it? Thanks!
What part of the sysex message do I have to write and send?