Fixed the soundcloud embed for you.
Your problems with it aren't anything to do with compression
, they're to do with the two basic fundamentals that I wish people had told me to focus on earlier. Equalization and stereo image. The whole thing is almost entirely in mono which if you listen to giorgio moroder often you'll discover doesn't often happen. Having certain elements "wide" in the "side" stereo image allows you to keep things in the mono in their own little spot in the mix. It's hard to describe, but if you listen to a song like "the chase" by moroder you'll notice the Kick and the snare are uniformly mono, and sit in the middle of the mix. The bass sounds are almost entirely in stereo, using two different variations of a bass sound panned, then with delay added. The pads will almost always have a stereo chorus on them widening them out, the same with elements such as hi hats which are panned left and right and given stereo reverb. This fills out the space, gives you a dynamic sound and makes room in the mix too.
The other thing is equalization.
This is two EQ's from a project I made, the one on the left is a picture of the EQ on my Drum bus, that's Hi hats, snare, Kick, claps etc. The one on the right is the EQ for the bass guitar. Both instruments have notes playing at the same time, I have the bass guitar playing a note whenever the kick drum hits, likewise with the snare. Soon as they are going to be occupying the mix at the same time, I want to make sure they fit together. You'll notice each EQ is basically a mirror opposite of the other, I cut the bass guitar at about 70hz because that's the fundamental frequency of the bass drum, this means they can both play at the same time without the other one interrupting the space of the other. If I didn't cut there on the bass, it'd become muffled and weird, with the cut I can play both at the same time, and HEAR both at the same time.
here's a demo from the song I was making to show what I mean. (this also demonstrates how much clarity you use when you stack up the instruments, that "wall of sound" comes at a cost)
http://jumpshare.com/v/Z7xnMR?b=q7Q3LN
Other great examples are IMO "Ain't no sunshine" by bill withers. At first you wonder why the bass, drums and acoustic guitar sound so muffled at the start, bill's voice is in the mid with the slight hint of stereo reverb...then it hits you when those wide, glorious strings come in. individually the elements of the mix are unimpressive but they come together like a jigsaw puzzle. To make a cohesive mix that allows you to hear everything without everything interrupting each other.
http://grooveshark.com/s/Ain+t+No+Sunshine/2OAZkE?src=5
As for the stereo image, just go listen to something like the beach boys with the original mono mixes and latter stereo ones and tell me which ones you liked more.
Mono:
http://grooveshark.com/s/God+Only+Knows ... xb3c?src=5
Stereo:
http://grooveshark.com/s/God+Only+Knows ... 41aL?src=5
TLDR: You've got all the elements of your mix banging on the same frequencies, in the same portion of the stereo image! compression would only make it worse. Experiment with mixing and listen critically.
