Hehehe
I have the eyes of a hawk and nose of a dwarf. Takes a DEEP sniff of your brass..
What I'm trying to say is: guess what, it may not be brass.
It may actually be made out of a wonder metal (autocorrect wanted to replace "wonder" with "river", funny but inaccurate!)
Yes. Usually they build with a holy alloy for that kind of thing! Something I've always wanted to replicate...

Brass (a much simpler alloy) still cannot naturally occur either...
So why is the stuff found on the surface of our moon??