All Things D claims Facebook's rumored Music hub won't allow users to take tracks from services such as Spotify and directly play/control them as originally planned. Instead, you'll be directed to an external site or player.
This is certainly a bummer for some, as music sites such as Soundcloud and Bandcamp allow some of this functionality when people use their links in Facebook profiles. But adding to the intrigue is news that Spotify CEO Daniel EK and Turntable.fm CEO Billy Chasen will speak at Thursday's f8 conference. [AllThingsD, TechCrunch]