You mean Beethoven's "Fur Elise?"
It's an option on my phone, but my phone is usually on vibrate.
Two of my buddies made a video parody of the Elise road tests on Top Gear/5th Gear and opened the video at the self playing grand piano that's in one of our lobbies at work.
The piano was playing the "Fur Elise" of course.
Was a funny video. It's about 60MB, if I can find someone to host it, I'll post the link.