thanks for your response. About your questions:
Skipping Spotify: Which of the 2 available spotify plugins are you using? I developed and testet only for one of them and with a trial account of spotifiy (because it is not worth the monthly fee to me).
Screen: The screen will only turn off, if you choose sleeptimer on pirate audio menu. If you shutdown the pi via pirate audio menu, the screen turn off until shutdown. After shutdown and while connected to power supply the screen turns back on (from this state there is no way to control the screen). I am using my pi zero as portable solution with adafruit powerboost circuit, which cuts the power 10 seconds after complete shutdown.
AxLED