I met the Colonel when Elvis was recording some song I'd written for one of his movies. Elvis was just having fun with the gang and all the Memphis boys and Colonel Parker was sitting over here in like a theater seat.
No drama, however great, is entirely independent of the stage on which it is given.
It's necessary to track characters all the way through an opera. If you're dealing with more than one or two characters, it's very easy to forget that the others have lives of their own that feed into the story.

