Couldn’t fill it in due to sign in requirement, so I’ll say some answers here:
The music is great as a theme and has a good tempo and style fitting really well with the game. If other musical motifs were done for different dungeons/areas/classes in a similar style, it would be great too.
I kept it running for a long time when I first started, I’d guess far longer than average! To the extent that it is completely stuck in my head and doesn’t take much prompting to hear it in my mind. But eventually of course I did switch it off for my own music. I sometimes go back to it, for old times’ sake. Hope that gives you some feedback as an alternative to the survey.