Most of the music is free music from Kevin MacLeod which you can find online.
I just remembered where i heard it from, It wasn't from another game it was the outro to "Tales of the Gas Station" i think.
Edit:I can't remember if it was Tales of the gas station", "I dared my best friend ruined my life", or "Accounts from a Lonely Broadcast Station".
Just listened to Accounts from a lonely broadcast station it's definitely that one lol. Andrea's Theme is the title btw.