I attempted to contact you with your email link, but my confuser, I mean computer, shot me down suggesting a I change my browser, and wouldn't link me even if I decided not to upgrade.
Maybe there's another way. I do admire your expertise and musicianship. I've enjoyed your videos from my early days of accordion. I play numerous instruments myself...guitar, banjo, fiddle, mandolin, etc. etc. Hopefully we'll be able to meet on common ground to discuss my accordion sometime...internet permitting.