August 27, 2009
Full Article

Pandora is a music discovery and recommendation service that creates custom stations based on artists or individual songs. The service is powered by the Music Genome Project, a taxonomy of musical information by a team of musicians an audio analysts who have gone through a massive database of songs and categorized them based on more than 400 characteristics (among them harmony, instrumentation, and rhythm). Once you input a song, Pandora spits back a continuously-running playlist of music with similar characteristics.