A vocalist to his keyboard player: “I’d like to do ‘My Funny Valentine’ again tonight, but can you think of a way to ‘jazz it up’?”
Keyboard player replies, “Sure. We can do the first chorus in G minor, then modulate to G# minor for the second chorus, add a bar of 5/4 time just before the bridge, then modulate to A minor and extend the last section for 3 bars!”
He exclaims, “That’s pretty complicated! I don’t think I could do that.”
Keyboard player responds, “Why not? That’s how you sang it last night!”