Musicals are plays, but the last collaborator is your audience, so you've got to wait 'til the last collaborator comes in before you can complete the collaboration.
Musicals are, by nature, theatrical, meaning poetic, meaning having to move the audience's imagination and create a suspension of disbelief, by which I mean there's no fourth wall.
My mother wanted me off her hands. She was a working woman. She designed clothes, and she was a celebrity collector. It's my mother's ambition to be a celebrity.
One difference between poetry and lyrics is that lyrics sort of fade into the background. They fade on the page and live on the stage when set to music.
The fact is popular art dates. It grows quaint. How many people feel strongly about Gilbert and Sullivan today compared to those who felt strongly in 1890?
The worst thing you can do is censor yourself as the pencil hits the paper. You must not edit until you get it all on paper. If you can put everything down, stream-of-consciousness, you'll do yourself a service.