Oh wait, one guy tried. One of our best developers brought his guitar to the office because he said it helped him think. He did what I'm now doing (he was my inspiration actually!) and was soon asked to leave his guitar at home. They didn't give two shits what it did to help his productivity. No one on the team complained either because they always wore headphones. Seems as though a busybody walking by the team space thought somebody playing guitar at work wasn't "professional." All management said was they had received "complaints."
Yeah, screw that.