The biggest thing I hve found with Brass is that if you buff the surfaces before soldering with a sanding wheel it will take on the soldier better. I purchased a nice little torch and a good quality Soldering Gun.
I'm still figuring out the getting everything to hot. I don't know how many times I had parts fall off cause I got the area to warm. But it just comes in time.
It's quite a beautiful metal to work with. I think
Hope that helps