Spoiler alert: probably not. Nick Summers, The Next Web:
It begs the question though: why would a Spotify or Rdio subscriber leave their dedicated mobile app for this? There’s no way to create custom playlists, queue tracks or access premium features offered by these more robust and expansive services. The idea, presumably, is to reinforce Twitter #Music’s discovery options by giving users the ability to listen to new tracks in their entirety.
It launched as a turd. A beautiful app, sure, but a turd nonetheless. It still is.