Described as a "A fresh approach to finding new music by using Tweets and follows", Twitter yesterday announced their latest venture - music discovery.
You can download Twitter #music from the App Store or use the web version at music.twitter.com. for now, Twitter #music is only available in the US, Canada, the UK, Ireland, Australia and New Zealand.
I've been using it and I've gotta say - I'm not impressed by the musical tastes of my Twitter followers. :) http://blog.twitter.com/2013/04/now-playing-twitter-music.html