A database you can sing to
The week-old site Midomi.com allows users to sing, hum or whistle snippits of songs. The site records the excerpt and matches it with snippits other users have posted. The process can either give you the title of the melody in your head, or you can simply match your skills against other amateur singers. It's a combination of sorts of American Idol, YouTube and Wikipedia.
The process works best if the tunes are sung a capella. So far the site has renditions ranging from Radiohead to Cole Porter. Some are better than others.
Amir Arbabi with the Molodis Corporation that created the site says he hopes to soon have a massive database of tunes people can use as a reference.
