Here is a Music Discovery application by Michael Sheldon called Eyrie:

Eyrie is an application for the Nokia N9 and N950 phones that can find out information about music that’s playing nearby. It does this by making use of the EchoPrint algorithm to extract musical features from whatever you’re currently hearing. This is then used to find out the name of the artist and track from The EchoNest. Currently the database of songs accessible via EchoPrint fingerprints is a bit small, but it has the advantage of being an open database that anyone can submit fingerprint information to (although at the moment the process for adding new fingerprints isn’t very clear)





Source Michael Sheldon’s Stuff