Simply doesn’t work

As others have found, Shazam does nothing at all. Maybe it’ll be fixed someday. I also agree with other comments that it’s extremely cheezy that it stays on permanently unless you hit an “off” switch. This is design by money-grabbers, not by people who want to deliver something great. You’re shooting yourselves in the foot in the long run, guys. It’s just a huge turn off. I’ll feel slightly unclean launching your app, Shazam won’t come to mind as an application I’d recommentd, and I’ll run to a competitor at the first chance.

PaulDuV about Shazam: Identify Songs, v1.0.1