Separate music for stream vs. VOD

What I'm aiming to do is have separate music tracks playing for stream and the Twitch VOD, just because I think a VOD without any music can feel kind of quiet and awkward, so having some generic copyright-free music going only to the VOD is my goal.

I know how to set it up, but I'm curious if anyone else has experience with doing this, and how you manage it. By manage, I mean like how you make sure to pause both music sources when music is supposed to be paused, if you play your copyright-free music from YouTube or a local file, if you use a Stream Deck to pause both sources with one button, etc.