So I know this isn't a saxophone, but finishes are finishes, right? Anyway, I just came by this mellophone, a Bach USA. It was a school horn, and of course needs some work, but I was wondering what you all thought was up with the finish. It appears to be some corruption of the original lacquer (still intact on inside of the bell), I think I remember something called red rogue? I've tried to use some bare brass polish, but the red tint remains. I would say it covers about 80% of the horn. I want to get this horn down to bare brass, but was just wondering what this was.