In a message dated 12/12/2006 5:33:22 AM Eastern Standard Time,
[EMAIL PROTECTED] writes:
Having played nickel silver horns all my life, now I
have a brass horn. Some of the interior piping is
coated with the green copper oxide. If this oxidation
layer is firmly attached (say after cleaning with
Having played nickel silver horns all my life, now I
have a brass horn. Some of the interior piping is
coated with the green copper oxide. If this oxidation
layer is firmly attached (say after cleaning with
detergent and a snake), is it okay to leave? Or is
all the green supposed to be removed (
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