Some years ago there was a rumor that Sanderson was working on an ETD for the sight impaired. It consisted of wrist bands connected to the machine, one for flat the other for sharp. Somehow a pulse was sent to one or the other or neither (or both) when the note was correct.
Perhaps the idea was shelved with the demise of Dr. Al., or it was only a false rumor. Anyone ?
Mike Kurta, RPT
www.keytops.net
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