The NAMM did an interview with Abe Thomas, a remarkable man who introduced the omnichord to the Americans. I met Abe years ago at the Frankfurter Messe, we've been keeping contact since.
Together we started the facebook group and now, for the first time, someone took the time to interview Abe about how it all started. enjoy this video, it's really great!
https://www.namm.org/library/oral-history/abe-thomas