Obsidian Conflict Forums

The directory is:

C:\Program Files (x86)\Steam\steamapps\sourcemods\obsidian\sound\music

Hey have been playing obsidian conflict recently and i like some of the music in it so i went to the install folder and there was a song called "SonicMusic.MP3" and i was wondering what is the actual name of that song or if it was made for obsidian conflict?

Thanks.