I loved this in the end of Flax's world #9 and had to hear the full thing.
Love the intro and the way it builds up. Gets me swinging. But each time it stops, it's a little jarring.
I think I'd prefer it if you kept building it up, maybe introducing some wailing, a horn, some added double-time melody, then maybe went into overdrive at the end before it all exploded into the seed we have at the start.
Also love the way you use the stereo.