David, did you not understand that you have to put the capo on the neck so that it presses down on the strings? Placing the capo on the strap only changes the vocals.

Billy

“Amazing! I’ll be working with Jaco Pastorius, Charlie Parker, Art Tatum, and Buddy Rich, and you’re telling me it’s not that great of a gig?
“Well…” Saint Peter, hesitated, “God’s got this girlfriend who thinks she can sing…”