Interesting
I am afraid i do not like the entire basis for what you originally wanted. I like the begenning, the similar parts, and i really loved the piano. The parts after the piano were pretty good, too, even if it didn't fit in. Until about 3:15. Then i just kind of lost my interest again. I like the idea, but that part was a little too screechy.
Anyway, if you could build something around those almost tropical sonds with a little drumming and most certainally some piano, that would be awesome.