hi,

thanks for your help !

actually no special hardware is needed to test the MIDI plugin, packages 
timidity and pmidi are enough

Timidity is a soft synth; it can be started in server mode with command

	timidity -iA -B2,8 -Os1l -s 44100

now we have a list of available MIDI ports with command

	pmidi -l

in my system this lists 6 ports. one is enough for testing: in a Squeak 
workspace, evaluate

	SimpleMIDIPort primPortCount

I get 0, because the primitive failed.

there is indeed a so.MIDIPlugin file in the VM library folder, but to my 
eyes it does not seem to work. any help appreciated... this is with the 
latest VM, 3.11.3-2135


best,

Stef