Home / Forums / Melodica construction, repair and maintenance / Reeds tarnishing after tuning / Reply To: Reeds tarnishing after tuning Reply To: Reeds tarnishing after tuning March 29, 2015 at 5:38 am #4536 DarenKeymaster Ive often found that the areas where i’ve been scraping have gone black. It doesnt seem to effect the reed performance or sound