Once upon a time, in a city near a Great Lake (known as Gathering Place by the Water) I ran a VtM game for a group for quite some time. I was very immersed in the VtM lore and vibe and scene. So I made a mix tape with a song that I thought captured the feel of each of the clans. It used a song as a general intro to the tape that was very atmospheric and signaled to everyone that we were ready to get started. I also had a mix tape made for whenever the party was at the ubiquitous club where lots of the action happened. During most of the game I had some general goth/punk music in the background. I also would cue up specific songs on CD for big moments…like when the Ravnos clan (including several elders) all showed up up at the club and using their disciplines threw things into chaos for the DJ as they made a thematic dramatic entrance unnannounced. The Ravnos character in the PCs especially loved that.
Later when I lived in OH and was running another VtM game with players who were generally more immersive, we used that same song as a brief meditative moment to “get into character” and ready to play. We also would keep some music on thematically in the background to help keep the mood.
My brother would sometimes use moody music when running his Ravenloft setting game and we would sometimes do soundtracks during DnD in general background.
But setting the way back machine to Way Way Back to when I started, we often played all night at my buddies house in the basement “rec room” or what would now be the man cave because it had the most room, a pool table, video games, and the best stereo system. He liked what would now be called “classic rock” as did many of us and because it was his stereo he played what he liked in the background. So for me AC/DC, Zepplin, Bad Company, Floyd and the like were the soundtrack for those games.
Now I think I’d like when I get around to running a game to incorporate some sounds, music and other things because the technology is so much smoother and more easily.