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List of Keyboards 

Square Piano by Hofmann, F

Credit: Uni of Leipzig

Square Piano by Hoffmann, J

Clavichord by Hoffmann, C

Photo Credit: Uni of Leipzig

Upright Piano by Hoffmann, A

Foto : Sofi Sykfont

Square Piano by Hoffmann, A

Square Piano by Hoffmann, A

Foto : Mikael Bodner

Upright Piano by Hoffmann, A

Square Piano by Hoffmann, A

Square Piano (Pantalon) by Hoffman, J

This piano was made by Johann Friedrich Hoffman in Cleve, Germany in the 1790s. This very unusual predecessor to the fortepiano was called a “pantalon” because of its two sets of hammers. The bare hammers would have been used to play loud passages and the leather-covered hammers for soft passages. This piano has a compass of FF-g3, simple jack action without escapement, 2 sets of hammers, one leather-covered and the other bare wood, double-strings throughout with tuning pins on right, 1 hand stop: changes hammer set, 2 pedals: bass dampers and treble dampers, wood frame, and an oak case

Credit: Smithsonian

Square Piano by Hoff, J

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