So after a couple of days using Poweramp on my HiBy player, I'm fully a convert – it's immensely better than HiBy Music, which I was using up until now.
The issue I'm having at the moment is with the physical buttons on my player – they will only control Poweramp playback if the app is on screen. If the screen is locked, or I'm on the home screen of my device, the physical buttons will trigger the playing or skipping of music on the native music player, HiBy Music (even when I've closed the HiBy music app).
I suppose the default HiBy Music app has special priveleges and permissions, which makes sense. It might be a device-specific question, but I wondered if anyone knows how to change these settings on Android, or whether Poweramp has settings that mean that it becomes the default app for physical control responses.
Cheers
Martin