A couple more classics:

(4) Be clear who you are singing to in the song, who is it being sung to? Where is the character in the development of the play? A good song in a musical usually moves the character to a different spot by the end of the song -- what have you revealed in the course of the song?

(5) Unless the song ends quietly, be sure you do a big finish -- don't skimp on the end. I can remember endless auditions where singers had all kinds of energy at the beginning, but by the time they had reached the end, it was nothing. Orchestrate your song, pace it!!

yours,

Peter T.