Sorry if this is the wrong category or if it's been asked before, but what's the best way to go about cleaning a very old, very neglected (and abused) cornet? It got it from eBay since I felt sorry for it, and didn't look in that terrible of shape. The cornet's a Roth, I think the model number is 362. From what I can tell it was made somewhere between the late 40's and early 50's. I played on it for awhile before I cleaned it, and the tone is nice for what I'm thinking is a student horn. It's missing a finger button. For now, I just want it cleaned to the point that it's playable without grossing me out.
I just soaked it in a tub of Lemon Joy and lukewarm water for a few hours and most of the gunk came off and out of it, and after a suggestion by my mom, used white vinegar to clean off the green stuff. Most of it's off, but would using vinegar harm the horn in any way? I just dabbed it on Q-tips and lightly rubbed it on the green spots, and thoroughly rinsed it after. I just got through polishing it which is part of the reason this is being posted so late at night haha.
A chem clean isn't an option for awhile, since my parents think that $65 is too much to pay someone to clean your horn, and since the repair shop has a six week waiting list due to schools dropping off their instruments.
When I saw the auction, I didn't see red rot on it, but low and behold there's a couple of spots of it on the leadpipe. I'm really OCD about my horns so keeping it clean won't be an issue. I have yet to thoroughly scrub anything on the inside except the leadpipe.
OH I almost forgot, pictures..!
Before cleaning. ^^^^^^^
After cleaning. vvvvvvv
Any suggestions on how to clean it are greatly appreciated. (now I'm seeing green spots on it I missed..)