[ A sigh of relief that's a little too exaggerated, but—he really is relieved? ...things aren't so tightropey anymore, admittedly, so he shouldn't be worried. It's fine.

...it might be a little less fine in a second, and his face is a little red when he looks over his shoulder. It's not from the apology though! It's really not. ]

I... sort of learned to play something—well, a couple of things, but there's one I'd like to show you? If you don't mind. [ A beat, and he clears his throat. ] And as long as you don't make fun of me. Please.