[pianotech] Brass cleaning solution

[Ron Nossaman]

Chuck Raynor wrote:
> Hi gang,
> You may want to check out the following link before you load up on this 
> stuff!
> 
> http://en.wikipedia.org/wiki/Chromic_acid

Hey, hexavalent chromium was the contaminant named in the PG&E 
lawsuit with Erin Brockavoch. I think I like tarnish. Patina!
Ron N