No. All parks require permits for such things. They tend to require you keep noise level down regardless.
You should be able to find rehearsal rooms available here and there, presumably for a fee. Some businesses like restaurants also may let you practice after hours -- again for a fee -- which can work okay when they're not in residential neighborhoods. If you're in high school or college, you also should ask them about related arrangements you might make.
Most have space that can be used for such things.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.