Hello,   Now look what I found:  http://www.serdashop.com/waveblaster   Seems like a cute little widget for any Midibox project needing a GM soundboard.  PCB with a SMD sound IC, takes 5V power and ttl midi in and out comes sound. We could stuff it in a MBSEQ for onboard sounds.  Or in Midio128 for an advanced midi file player. Or... or..   I'll get one and give it a try!