'(<a href="http://www.j-archive.com/media/2008-05-20_DJ_20.wmv">Sarah of the Clue Crew reports from the Steinway & Sons factory in New York.</a>)  Steinway stopped using this material in keys decades ago, & in 1993 the company patented a piano key material made of a substitute for it'
ivory
A WHITE CATEGORY: Steinway stopped using this material in keys decades ago, & in 1993 the company patented a piano key material made of a substitute for it
Steinway stopped using this material in keys decades ago, & in 1993 the company patented a piano key material made of a substitute for it
Steinway stopped using this material in keys decades ago, & in 1993 the company patented a piano key material made of a substitute for it
A WHITE CATEGORY
ivory
A WHITE CATEGORY