toggle function embedded within the Settings page.
This feature would make your music pause if there is audio coming from any other application.
Such as, when you start watching a YouTube video, Spotify will automatically detect it, and pause your music. Once the audio from the YouTube is no longer active, then your music will automatically resume. No more flickering back and forth between Spotify and browser, just to pause/play your music. You could, of course, edit which websites/apps trigger the pause/resume feature. Such as games.
Gaming and Listen to music is like Peanut-butter & Jelly! :D