Twitter today launched a significant update for its Twitter #music app, adding new music discovery features to allow the service to better compete with other music services like Rdio, Pandora, and Spotify, all of which offer robust content discovery tools. Users can now listen to an artist's top tracks, listen to similar artists, or listen to artists that a favored artist follows on Twitter. The #music app also includes a function that scans an iPhone's music library in order to make more relevant song and artist suggestions based on past preferences and it takes note of artists that users have tweeted about.What's New in Version 1.2 We've added a bunch of new ways of discovering music. Listen to artist's top tracks, similar artists, and the artists that your favorite artist follows o
