I'm looking for a web application that allows me to share the music I'm listening to in real time with a friend over chat. Note: this isn't about broadcasting my musical tastes or publishing my history.
The use case is: I'm listening to a rockin' track while I'm chatting with my friend. And I want to be able to show him by allowing him to stream my track. The music would be sync'ed so that I could point out the parts that I really like.
Does something like this exist?