Making lyrics feel natural, sit on music in such a way that you dont feel the effort of the author, so that they shine and bubble and rise and fall, is very, very hard to do. Whereas you can sit at the piano and just play and feel youre making art.
Stephen SondheimThe last collaborator is your audience ... when the audience comes in, it changes the temperature of what you've written. Things that seem to work well -- work in a sense of carry the story forward and be integral to the piece -- suddenly become a little less relevant or a little less functional or a little overlong or a little overweight or a little whatever. And so you start reshaping from an audience.
Stephen Sondheim