Hi Mitch, As far as periodic cleaning of keys is concerned I have found nothing better than CORY Key-Brite. It works. It is safe for plastic, ivory, and ebony - use it as often as you like. It leaves a nice surface, and it smells good, too. My clients also love it! Just my two cents worth. John Piesik San Diego Chapter PTG JPIESIK@ARINC.COM
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