I’m required to play music today.

I’m not sure I remember how. I’ll have to root around to find the instrument and accoutrement required. I’ll arrive five minutes before it’s time to play. When I get there, it’s unlikely I’ll know everyone I’m playing with. I’ll have to ask the dumbest questions of my compatriots.

What key is this in?
-A
Who sings this one?
-You do.
What’s the first few words?

It’s only rock n’ roll. I’m overqualified.