So I wrote some pretty involved lyrics, humming the melodies for the parts to myself the whole time. Seemed pretty solid. I then laid down a drum track, still singing along. Perfect. I then started noodling around with some lead piano... and realized I can't remember the vocal melody at all anymore! And nothing seems to fit.
Aaargh! Why didn't I record it into my phone's voice memo (like I sometimes do, but didn't this time)? Is this classic song ruined forever?
Oh well. Back to the (melody) drawing board, I guess.