Small media player development

Hello! I’m using Unreal engine 4.27.2 and trying to make a small media player for android. I have a few questions for you :

  1. How to make audios (sound base, such as OGG and Cues) play in background when app is not in focus (collapsed)? And how to make actors update when app is not in focus?
  1. How to make unreal engine get input from media buttons on android, such as “next track” or “pause” on my headphones or watches?

  2. How to make UE4 display song name and composer like all media players do?

This might be complicated because I’m not an experienced developer with oddly specific ideas, but I appreciate any help…