Selling arrangements

Jul 19, 2019

So, I want to make and sell arrangements for piano since I can play piano and my ears are pretty good. However, I'm still a young scrub and don't understand copyright law yet.

Is it legal to sell piano arrangements without obtain the copyright to do so? I have 3 pieces that I have't uploaded yet and want to sell (since they're easy enough). I've tried to contact management as well as the producers for these songs about this yet none have replied to me over the course of months.