Symphony of the Machine is on the PS Store and Steam:
http://store.steampowered.com/app/540010/Symphony_of_the_Machine/
https://store.playstation.com/#!/en-us/games/symphony-of-the-machine/cid=UP3491-CUSA07952_00-0000000000000000

The soundtrack can be found on all online music stores. Here's the bandcamp link:
https://syntonemusic.bandcamp.com/album/symphony-of-the-machine-official-soundtrack

Syntone are experts in audio for film and games, from AA to Indie. We're friendly and accommodating to all:
http://syntone.com.au/