Hey, I'm new to the forum.
I heard a song a few times in two H&M stores - Birmingham & Solihull UK - in Jan & Feb 2012. This is a shot in the dark as it had no lyrics/vocals - it was an instrumental ambient track, along the lines of Explosions in the Sky, maybe the xx.
I have searched online for absolutely ages, with no joy as expected. I really loved it & I'm kicking myself for not asking a member of staff about it at the time. If anybody happened to have heard the track & knows what it is, please let me know!!!!!!