Yes, I have also noticed that, but I think currently we are unable to fix this in music app, unless we make some tricky stuff to avoid the fast-forward/rewind triggering audio.currentTime. I have asked Marco Chen about the states of audio elements, because seeking might happen on a streaming source, so the audio will enter to the mute state, which will fire audio-channel-changed, but not "content" channel that system app is listening and music player is using, so that's why you are seeing the play icon flicks.