SoundHound, powered by Midomi, is a music identification service along the same lines as Shazam. Like the other app, it will take a sample of music you hear playing and identify it for you. It goes beyond that, though, letting you hum or sing a tune to get a result.

From my informal tests, it seems to be about as accurate as Shazam when identifying prerecorded music. I tried humming a couple of songs, but the app was unable to identify either. (I really don’t think “Hey Bulldog” by The Beatles sounds like ABBA’s “Voulez-Vous.” It couldn’t guess Rick Astley’s “Never Gonna Give You Up” either…) Humming is an imprecise art though, and I don’t really sing. Your mileage may vary, I guess.

Lifehacker also has an article comparing the performance of Shazam and SoundHound.

Another advantage SoundHound offers is the ability to quickly call-up lyrics for the song you just ID’ed. Useful for those Mondegreen songs…

SoundHound is pretty much free, unlike Shazam. You can ID an unlimited number of songs without having to upgrade to the paid version of the app, though they do offer an ad-free upgrade to get rid of the ads. Try them both out, see which you like better. :)