200th Anniversary of Érard's Double Escapement Action
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Double escapement piano
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200th Anniversary of Érard's Double Escapement Action
Pleyel double escapement action
Archivo:Pianoforte Cristofori Escapement Action.jpg - Wikipedia, la enciclopedia libre
Researching Pianos ~ The Action
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keyboardamerica.com/CLP-625
200th Anniversary of Érard's Double Escapement Action
Grand Piano Action
