I realized I had not converted the ACSII command codes to hex. After doing that this is the Sysex message I calculated to change the instrument to bass. The H9 is on midi channel 2.
F0 1C 70 02 3C 32 36 38 20 31 F7
Is this correct?
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But, I'll break the habits of a lifetime, and JUST THIS ONCE, try and do the decent thing.
Two issues"Show More...
1) The number 2 is the MIDI SYSEX ID – this is not the same as the MIDI channel. I would suggest that you keep this at zero, as many things do not work with different values.
2) You have the number wrong – it should be 200 (hex) plus 68 (decimal) expressed as hex. This would be 244 (32 34 34).
That should do it.