I don't know why, but I started having explore music inside such buildings as Sleeping Giant Inn, Gray Pine Goods, Riverwood Trader. Can't say anything about other buildings and locations, simply because I haven't visited them yet since I have first noticed the issue. I don't know, maybe it's ok, I've never actually paid attention to what and where I hear, the reason why I've noticed it is that it sounds kinda odd. So if it is a really bug, I'm asking if you know what might've caused it and how to fix it. Thx)