What Key?

Quickly, quickly, shuffle in, now
Alto's in the front, tenors in the back, thank you
We'll be doing Concerto 3 in the key of D, people
Key of D, everybody, that's the key of D?
Key of D?
Hey, psst
What?
What is- what does he mean by key of D?
It's a D
How do I know if I'm even in D
It's D!
What is D?
What am I supposed to do?

I don't know what key I'm in, I don't know, I don't know what key I'm in
I don't know what key I'm in, I don't know, I don't know what key I'm in
I don't know what key I'm in, I don't know, I don't know what key I'm in
I don't know what key I'm in, but I know, but I know, but I know it's not this one
I know it's not this one
I know it's not this one
But I know it's not this one, yeah, yeah

I don't know what key I'm in, I don't know, I don't know what key I'm in
I don't know what key I'm in, I don't know, I don't know what key I'm in
I don't know what key I'm in, I don't know, I don't know what key I'm in
I don't know what key I'm in, but I know, but I know, but I know it's not this-