TaniosI believe the answer to this question is technically yes, however, copper, brass, and bronze are at the same level on the cathode/anode scale, so it is literally your best case scenario for mixed metals. If you don't science: It should be fine.
Maybe only slightly less fine than one or the other alone, which will corrode in the environment alone.
This is a galvanic series chart. You can easily find better ones with actual numbers on them, but basically, if the metals are close together, you have little risk. If they are far apart, bad things will happen. Copper and brass are pretty similar metals, so it works out to be fine.