Hi, have been going through various threads trying to compile a solution for my issue with no luck, this feels like the closest match.
I'm facing a similar situation wanting to send Midi from Supercollider running on Bela to another device, but my Bela is connected to a network over ethernet. Using the hints above I've got Bela emitting a note from Virtual port 1, which I can verify using amidi --dump -p hw:1,0.
In other places you've said this is related to the midi rpt functionality so I think I must be close, I think I just need a port number to complete the config of midi rpt in audioMidi setup, but I can work out where to look to get this, and snooping on active ports hasn't helped!
EDIT: I realise that I might be missing the part of setting up a udp port as the communication protocol...