WOW! Thank you for posting this. I can also confirm that The Theremine affects the Microfreak. I have been struggling with my MF for days now, I seriously thought there was a problem with the keyboard, or internal settings in my MIDI routings. Spent Hours on troubleshooting,Finally I searched the web, and I find this message! Posted yesterday. OK, so I turned off the Etherwave, restarted the MF, and all is back to normal.