The music CD you get with the Collector's Edition(I myself got it from sinsofasolarempire.com in a zip folder, but no matter) has 23 of the songs from the game, and lists them with names. Among them are;
Designation(ie. Battle 7) - Music CD Name
Opening Theme - "Opening Theme"
Vasari Theme - "The Fallen Empire"
Vasari Trouble - "Cataclysm"
Vasari Sad - "Ten Thousand Years"
Advent 3 - "A World In Isolation"
Advent 2 - "Deviants"
Advent Sad - "Expulsion"
???* - "Peace and Prosperity"
Trouble 8 - "Impending Darkness"
Vasari 1 - "The Arrival"
Battle 3 - "A Futile Challenge"
Vasari Battle - "Outclassed"
Battle 7 - "Relentless"
TEC Quiet - "Birth of the Coalition"
Battle 10 - "Resistance"
Battle 14 - "Counter-Attack"
TEC Theme - "The Emerging Empire"
Vasari 5 - "Desperate"
Advent Quiet - "The Prophecy"
Advent 4 - "Collecting of Will"
Advent Theme - "The Expanding Empire"
Advent 6 - "The Return"
Trouble 3 - "Two Fronts"
*I honestly have no idea. I checked everything that it possibly could have been, it's not one of the "Quiet"s, the "Sad"s, the "Upbeat"s or even the "Trouble"s, and it's not one of the TEC themes in the game folder, albeit it's definitely TEC from both the name and how it sounds. I've never actually heard it in-game, either.
Hope that's what you wanted.