midomo: song search engine

I found a search engine from Gizmo, it is midomi.

I tried it by humming the melody of “Big Big World”, it works. Really nice. You can search a song by humming the melody. That is good. If you know a song’s melody, but don’t know the artist and the song title, then you can search by humming.

I wonder how is the searching algorithm of the website. Very interesting.