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Swenson's Piano Shop - Articles - Viennese Action
CBH Carey Beebe Harpsichords Australia — Global Harpsichord Technology
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Page:A Dictionary of Music and Musicians vol 2.djvu/730 - Wikisource, the free online library
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CBH Viennese fortepiano action - YouTube
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Your Beethoven - Trudelies Leonhardt: fortepiano, Hammerklavier, pianoforte... Ludwig van Beethoven's website -
The Piano: Viennese Instruments | Essay | The Metropolitan Museum of Art | Heilbrunn Timeline of Art History
The Piano: Viennese Instruments | Essay | The Metropolitan Museum of Art | Heilbrunn Timeline of Art History
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Evolution of the Viennese Fortepiano | Daniel Adam Maltz
