The music in Zero-K is created by Denny Schneidemesser, used under a CC-BY-NC-ND license from:
http://www.soundclick.com/bands/page_licensing.cfm?bandID=604509

You are free to Share - to copy, distribute and transmit the work

Under the following conditions:

Attribution - You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).

Noncommercial - You may not use this work for commercial purposes.

No Derivative Works - You may not alter, transform, or build upon this work.

http://creativecommons.org/licenses/by-nc-nd/2.0/