This music has a jazzy lounge feel to me, but it's not exactly relaxing.
It's got some upright bass, misc. percussion sounds and some synth sounds.
I think it's got a pretty good groove going, and it builds into a nice cacophony.
My favorite part is the sampled synth voices, that almost sounds like lyrics. Pretty random, but they sound so great I had to put them in.
Please contact me if you would like to use this in a project. We can discuss the details.