I kept waiting for the catch and I felt like it was almost building up and then it would repeat. It needs some work, but I think the synth is solid.
After messing with it for a few minutes every day i just couldn't figure out the catch either. So I figured I'd just push around some more stuff until it sounded mostly song-like.
i almost put it in ambient for lacking much of a clear structure... but it had too much structure for ambient tunes.
well, thanks for poppin' by!