You probably don't remember, but I first met you at Ashokan Northern Week back in the 90's as a camper and was taken by your vaudeville breakneck sensibilities on piano and everything else. Right up my Borscht Belt alley!
A few years later when Mary asked me to join the band for a YI Monday night Concord dance, I clearly remember (slightly nervously) starting the night with an Irish reel in D on mandolin. You tilted your head back from the piano and said "yeah!" the first time through. That was all the encouragement I needed.
Years later, playing with you in lots of configurations with you, I've heard that sort of exclamation so many times—it charges the band, the dancers and everyone around. Vitamin K! Positive, delightful, beautiful energy.