Patrick, the canadian Heintzman company made some of these in the early 1900s. The action does not move, but the whole keyboard moves up or down. These keyboards have extra keys that hide in the hollowed out keyblocks. Thing to remember is to zero the keys before doing the pitch lowering or raising.Marcel Carey, RPTSherbrooke, QCFrom: pcpoulson at sbcglobal.netTo: provotuning at yahoo.com; pianotech at ptg.orgDate: Wed, 7 Jan 2009 13:17:04 -0800Subject: Re: [pianotech] Changeable Pitch Action Mark: I suspect that this is actually a transposing piano, in which the lever slides the action over a half step, like a grossly overadjusted una corda lever. Open the piano and watch what happens when you work the pedal. Patrick C. PoulsonRegistered Piano TechnicianPiano Technicians Guild _________________________________________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090107/862845ed/attachment-0001.html>
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