Since all the other musicians seem to be showing new music today, I thought I might as well do the same:
Prospect vs Oceanlab - Satellite (For the Ages remix)
I spent a good 6 days on this, at least 3 hours of work per day. I haven't worked on anything harder. I need to fix up the hit that leads into the breakdown but other than that, this turned out exactly as I hoped it would.
I also spent a good hour or two purely on the mastering, and put most of the 15 synths and 30 or so percussion/effect samples I used in the mixer to refine them to what I was going for. Since I'm running off of headphones I don't know what they'll sound like to you, but I hope it sounds as good as it does to me.
It ends abruptly, sorry if that throws you off.