I've been away from this list for a while, but key coveriings interest me - I make fortepianos, and those of us who do this use bone - from cows - to cover our keys (only the early pre-1800 fprtepianos were covered in ebony). No need to kill elephants nor use plastic. Bone's a bit hard to find, and expensive (like ivory) but is very hard, easy to work, does not yellow, and was used on early pianos until the ivory craze which began in England in early 19th cent and spread elsewhere pretty fast. If modern mfgrs would use bone for their good instruments, somebody would surely open a factory in Omaha and we'd all have a cheap source. Margaret Hood www.fortepianos.pair.com
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