If your phone is paired and connected with a bluetooth device that supports streaming music (A2DP) you can simply push the play button on your bluetooth device to start the music player on the Backflip.
This is great for using with a car with a bluetooth equipped sound system. I get in my vehicle, start it, turn on the radio, wait for the 'connected' message and press play to start playing from where I was when I last used the music player. You don't have to look at or even touch your phone if you leave bluetooth on all the time.
This works with my Sony Ericsson HBH-DS970 bluetooth stereo headset and my Dual XDM6400 head unit with the optional Dual BTM60 Bluetooth Adapter.
If the music controls on your bluetooth device do not work with your Backflip (forward, back, play, pause) and you have installed any additional music apps try uninstalling the other music apps. If this does not fix the issue you may have to do a Factory Data Reset See note at top of this page.
Not all bluetooth devices will work as described here.