Sorry, I could've been more specific.
For the first 30 minutes in the video, you're standing still going through all the perks. We the viewers appreciate you talking us through everything, but I meant in terms of gameplay, you weren't doing anything during that time. To my ears, the way the game switched between different music tracks and silence felt inconsistent, given how consistent the (in)action on the screen was (fine for a first pass though).
Now you might be thinking, big deal, you're not going to sit around like this in a real game, and the music can't be expected to make doing nothing feel exciting. But when I think about what actually consumes my time in the game, there's a lot of mining and farming and organizing inventory and figuring out what to buy where I am idle or nearly so for long periods of time. So combat music and spooky dungeon crawling music may be givens, but your music guy might also want to think in terms of music to mine by, music to build by, music to farm by, etc. - even if the game isn't programmed to play separate tracks for those cases - because they are big use cases, all the same.