The ASA Alternate Soundtrack was composed by Python Blue, a music composer who enjoyed the game and decided to make his own tracks, with a very personal style.
You can read an interview with Python Blue on The Icehouse blog (click here). You learn more about him, his past and future works, and his participation to the soundtrack of Blue Moon, another game in the Black Cube series.
ASA Alternate Soundtrack by Python Blue
(or purchase here: Python-blue.bandcamp.com)
ASA Original Soundtrack by Stélian Derenne
(or free download here: Karreo.bandcamp.com)