Do questions about video game soundtracks belong here? I'm just curious as I do have a few questions about various games and their OSTs. Would it be considered a video game question or a music question?
If the question is entirely about the music, then it would be on-topic here.
If the question relates, in a direct way, to the game, then it should probably be asked on Arqade. Note that I'm not necessarily saying it would be off-topic here.
There are a number of sites that overlap with other sites (Science Fiction with Movies, Space Exploration with Astronomy, etc) and it is often up to the asker to decide which site will give them the best answer(s). If the question is on-topic on the site where it was originally asked, SE guidelines are to leave the question there, even if (in the judgement of some people) it would be better elsewhere.