Skip track by double-clicking power button
I would like to suggest this optional feature which is accessible only when and as long as media player is started. This way one could skip tracks easily without need for activating the display, as this is mainly the cause for battery drain.
Of course, using headset buttons could be the optimal choice. But there are many different headsets with different wirings or even without buttons. And as I understand only one setup is supported at the time (1.1.1.27).
Maybe it could also be a programmable event for other media player developers.
Using double-tap or single click for activating display while listening may be ok in this case.