I absolutely forget to mention this ages ago when this popped up in late 2014, but Simon Ravn has the entire Invasion from Below Soundtrack in one broad take from his website under the date 2013. (Also available for download if you click the link to the soundtrack on the website)
NOTE: At 14:35, you can hear a very brief motif of the Hero Factory theme by the Wurst Brothers. Thought I’d mention it since the TTV Podcast on Invasion from Below mentioned before the release of the Soundtrack that were little to no variations on themes in the first 10 episodes for the music in IFB.