(Sarah of the Clue Crew reports from the Steinway & Sons factory in New York.)  Steinway stopped using this material in keys decades ago, & in 1993 the company patented a piano key material made of a substitute for it
[DOC] [TLE] http://www.wnyc.org/story/the-relevance-of-buckley-v-baldwin-today ... [PAR] The modern materials also help to protect against humidity, climate changes, and 
other ... Steinway and Sons</span></a> to develop a more responsive instrument
.