A very handy program for routing MIDI data between programs on your PC. https://www.nerds.de/en/loopbe1.html
Free Midi Data Router for Windows
29$ Computer Board for Audio Applications
Here is an interesting article on the " Daisy" microcomputer board.
Soundplant Computer Audio Triggering Software
Here is a really great little program for playing audio files instantly. https://soundplant.org/i
ZL Greenwood 