Hi Folks, Here's a picture of the player piano valve I mentioned the
other day [22.09.23 MMD]. It should work with other MIDI conversions
that have valves. Just snip the hose from the tracker bar, insert a
'T' and run a hose from the 'T' to the magnet valve.

You could probably just leave them loose as the moving parts are all
inside the valve. It's neater to mount them on a nearby board.

Regards
Craig Smith
Upstate New York

 [ https://www.mmdigest.com/Attachments/22/09/26/220926_115201_PP%20valve.JPG