"Think of Rain" is an unreleased song recorded during the Aerial Ballet sessions.

 

We learned from someone at RCA who was compiling a Nilsson package that "Think of Rain" was listed on a tape box, but razor-cut out. (Harry apparently did that when he didn’t like a performance.) Harry told me that he had tried recording the song many different ways - fast, slow, hard, soft - but nothing worked. He said he’d let me hear it, but never did. So it was never released, I never heard it, and the public will never hear it. Alas!

-- Margo Guryan (2012) [1]