The Advanced Audio Mixer seems like a good idea, but even though I'm crediting artists and clearly showing that I'm using Spotify for my music, my video are being muted for using "unlicensed" audio. This is making me want to use the Advanced Audio Mixer to specifically exclude that specific audio from my stream so I can listen to music and still stream without getting my audio turned off. Except, there is no option to choose Spotify as an Audio Source to add it to the exclusion list!