Sony Ericsson’s TrackID system is clever, but it’s not much use if you’re being plagued by a tune in your head and you’re desperate to figure out who it’s by; the SE app only recognises actual music playing.  Melodis have another solution: their midomi mobile software has a growing user-submitted database of music that can be searched by simply humming the melody.  Available as a free download for Symbian and S60 handsets (with S40 and Java versions promised in the future), midomi can also be used to search for YouTube videos as well as access the service’s online community of profiles, recordings and playlists. 

It’s not a perfect solution yet: identifying songs playing on the radio, as TrackID does, is expected in a future release, as is voice-activated searching whereby speaking the artist’s name or track title queries the Melodis database.  And of course, if it’s not in the (user-built, remember) database, then your search won’t find it; Melodis promise 95-percent accuracy if it’s on record.

Nonetheless, it’s promising enough for Nokia to make it a Featured Application, and as a free download (although you’ll pay for data costs, of course) it might be an escape from that annoying mental song.

You can download midomi mobile from http://mobile.midomi.com/ or from http://m.midomi.com/ direct from your S60 device.