Desperately poignant and affecting.
This kinda reminds me of the Snes DKC music. Slow but contious changes in everything. Repeating a phrase 4 or even 8x may happen but only with changes elsewhere. Each new element is judiciously timed for its entry.
The opening atmospheric noise is excellent, as is the tremendous resonanating echo of the drums.
I love the way the melody originally comes in at around :40, in the background.
Pulling back everything else at 1:23 is a bold move, but you pull it off perfectly.
When the 'main' piano first pops back in it's a great payoff.
Hitting the higher notes at 2:57 is also a lovely pattern.
I feel like the whole last 40s is kinda weak - a bit of a cop-out. The 3:55-3:58 bit kinda felt like it was gonna go for one last spin, so to hear it finally wind down was disappointing.
What makes it even worse is the chord played at the end. C'mon! The song's unsettling, slightly poignant and why give us a payoff? Leave us hanging! Stop on that one last note if you've got to have an ending.
If you'd had it loop though, that would've been a boon in my opinion. I like being able to listen to songs as great as this over and over with no pause or stop in between. ;-)