I’m a little fuzzy on the details.
It’s in Pittsburgh and kind of an AU. It was about after breaking up and some time apart, they randomly run into each other on the street I think. They start talking again and try to rekindle their relationship. They broke up in the first place because they started being monogamous and brain was cheating. And lastly I remember in the story brian's loft getting torn down so he moves to a different place.
I have been trying to find this for awhile. Help would be much appreciated!
FOUND:
Music of the Mind: Part 1 'Andante' by Gia
http://www.qaf-fic.com/atp/viewstory.php?sid=3871