Like I said, that's 2 individual tracks. The bassy-drone section will be expanded to have horns in it, I'm recording them next week, really excited.
And about the volume, it's one of nifflas' requirements for a 'Really Custom' level that
* The music volume must match the normal Knytt Stories music volume, so it's not too loud like some KS levels.
I'm not actually sure of the overall volume of Niff's KS music, but I can always change that so it matches. No problem.