SongDNA is a mobile app that provides you all sorts of information about songs and musicians. It’s been available for the iPhone for a while, but now the SongDNA team has launched an Android app.
My first thought was to describe it as sort of an IMDB-for-music app, but that’s not really doing SongDNA justice, because it doesn’t come across as a me-too application at all. You can also find photos of the artist, a link to the Wikipedia page, and a list of other albums released by the artist. There’s also a Twitter Vibe section which shows you what people have been saying about the artist on Twitter.