Good, but let down by the sound
It's well put together, all the instruments work together, and it sort of sounds like some Jazz musicians just having a jam.
My main complaint was something that stuck out to me right away, the sound of the drums. The programming seems to be good for the most part, but the drums sounds so digitized and fake they just knocked me right out of the song. Especially the snare sound, which just doesn't sound the same as a natural ghost note.
I did really like the way you transitioned from the alst part to the first with the gradual slowdown, I thought it worked quite well and did the job of bringing you back to the start.
I also think that since you move through three clearly defined parts it keeps it interesting and doesn't drag anywhere, each part lasts just the right amount of time.
In summary, really good, just let down by the digital sound.