How does audio output work for Ear (2) when Dual Connection is enabled?

When no audio (music, video, or call) is running on the two connected devices:
Ear (2) will play audio from the first device receiving the incoming call/making an outgoing call, or will play audio from the first device running music or video playback.

When only device A is running music or video playback:
1) Ear (2) will switch to device B if there is an incoming call or if device B is making an outgoing call. Calls take priority with Dual Connection.
Then after the call on device B ends, Ear (2) will resume the music/video playback from device A.
2) When device B starts playing music or video playback, Ear (2) will play audio from the first device running music or video service.