After about the third repeat of the main theme, I found myself imagining that all of the instruments would fade away, leaving a slow, sweet, soulful piano solo. (I love melancholy piano music) Then returning to that main theme for a driving finish. But, hey, I write software, not music. What do I know? Just an idea in case you ever choose to revisit this piece some day.

I'll be listening...

or perhaps to wave layers in and out like surf on a beach with the piano always driving the minimal pulse...

Oooh, yes. I like that idea!