Very helpful insight, thanks again mate.

Curiously, I don't normally click on the hamburger icon because hitting the ESC key also toggles the top menu, so I completely agree with you that it doesn't feel natural.

I've been tempted to put more information on the player panel but have forced myself not to do so to keep the UI as clean as possible (mainly thinking in mobile browsers). I guess I could put in some icons, though, that would give hints to user as to what's actually going on behind the scenes.