Maybe it needed to be a song. On the other hand, they had already done that. A poem crossed their mind, and they had to laugh (they often had to laugh). It could have been a lot of things. But then, it could only have been one way.
There are poets and there are composers. In a way, it’s simply about their strategies for producing art and relationship to art making. In another way, it’s an inherent, spiritual quality—housed somewhere between the body and the note.