On the One More Seven-Manual Organ thread, someone made a joke about inventing multiple pedal claviers on a single organ. In my reading of Audsley's Organ Stops and Their Artistic Registration, I discovered this quote a few days ago from Locher under HOHLFLÖTE, pages 167-168.
"[A good Hohlflöte is to be found as a 2' stop on the Upper Pedal of the Organ at Ulm Münster]....To explain the term 'Upper Pedal,' I must say that at Ulm, as well as in the Church of St. Paul, Frankfurt-on-the-Main, in the Marienkirche, Lübeck, and in the Stiftskirche, Stuttgart, there are two pedal claviers placed one above the other (like the manuals) instead of the customary single clavier."
To which Audsley adds a footnote:
"In our work, The Art of Organ-Building, Vol. II., pp. 145, 146 we give a Section and Plan of the double pedal claviers of the Ulm Organ, made from drawings furnished by Messrs. Walcker, of Ludwigsburg, the builders of the Organ."
Does anyone have more information about this curiosity? Is the original Walcker organ still at Ulm (actually very near to my grandparents' hometown)? How would one play an instrument of that sort? Is the second clavier shortened, like on a spinet? Any pictures?
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