Was having a v interesting conversation this morning with an emminent brass player about how the finish of instrument affects the sound. Got us wondering (and neither of us could answer!): Is there a commercially available product that naturally removes the lacquer from a gold coloured instrument? (Any solutions of coca cola mixed with random stuff, etc, or any other favoured methods?) On a bsp instrument, is it possible to 'self- frost' the instrument, or basically remove the shine from it- leaving a dull surface? It seems locally that the company that make Eclipse instruments can do both of the above, for a lot of money! Is there an 'off the shelf' product that could enable Joe Bloggs to do this at home his/herself??