Let sounds play when you're using another application. Enable this option to continue hearing sounds and specify which sounds to play. Useful to hear when something like a duty roulette pops when you're tabbed out.
Play music when mounted.
Mounts play music when mounted, but it can get repetitive after a while. Disable the music here and re-enable it later when wanting to listen to it!
Adjust and enable/disable sound settings. For instance, it can be useful to disable ambient sounds to reduce audible noise.