The Incomplete Audio Component to a Work in Progress

Notation of Introduction

The following is an incomplete audio track that will eventually be submitted to a friend for an animation.

As fair warning, this sounds a bit like a slightly broken music box.
I meant to do that.

I think the first 2:50 are close to complete.
The final 38 seconds could probably benefit from a semi-heavy percussive cadence.
The indistinct percussive background toward the end is actually aging mechanisms of the piano's foot petals. I plan to somehow drown that out.  

(please allow 7 seconds before the audio track starts.)