When I was in high school, my math teacher would play Mozart during tests, claiming it would help us. It would drive me crazy, and I doubt that my grades improved as a result of the distraction.
For what it's worth, I have a BMus in Piano Performance. I love music... but never as "background noise"!
What I've been doing that's actually been quite effective is I'll just loop the same energizing song over and over for the entire work day, sometimes even for multiple days. For me it helps keep me energized while also letting the song fade into the background since it's on repeat. I'm sure many people would not be able to stand this, but it's been the perfect solution for me.