When I was a kid I got drafted into a Ceili band playing guitar. When we'd "practice," the button accordion player would start in on a tune, the others would jump in, me too, then 30-45 minutes later, we'd stop & the boys would get another beer or whatever. I never had any idea what tune we were playing-& I couldn't begin to know how figure it out when after a dozen tunes went flying by, they might tell me, "well, we did thus & so, & whatzit,&--oh, wasn't such in there too?" Only ones I really knew titles for were the songs which one of the fellers sang-usually unaccompanied.