Gear Circle: How to use to control and play music?

Using Play/Talk key on Gear Circle, you can play music and control the

playing music.

If you press the Play/Talk key, the most recently-played music file will play

automatically in the  default music app installed on the connected device. 

Also, you can do pausing, resuming playback, skipping to the next song and

adjusting the volume.

■ Note

    When you answer a call while a music is playing, the music will pause

    and resume automatically when the call is ended.