Android App starts playing without prompt. / Switches to Chrome Player without prompt

[MagiMarionette]

Plan: Premium

Device: Droid Turbo

Operating System: 8.0

My Question or Issue:
The android app has taken to starting to play on its own while the phone is sitting locked. The music it starts playing seems completely unrelated to anything I was listening, or wanting to listen, to.

In a potentially related issue, both the mobile and desktop apps have a tendancy to switch to a third "device", the "chrome webplayer", even when I'm not using chrome on any device.

This is problematic behaviour from a Premium app, and will not be continuing to pay for premium if this sort of erratic behaviour persists.