Literature

Bach Tuning System

• The Esoteric Keyboard Temperaments of J. S. Bach, John Charles Francis, 01.02.2005 (PDF file)

• Comparison of Werckmeister’s Correct No. 1 ("Werckmeister III") with BACH R12-2, John Charles Francis, 15.02.2005 (PDF File) 

• Das Wohltemperirte Clavier - Pitch, Tuning and Temperament Design, John Charles Francis, 01.07.2005

• Proximity of Temperaments to Das Wohltemperirte Clavier Ideal, John Charles Francis, 25.08.2005 (MS WORD File) 

Suppig Tuning Systems

• Friedrich Suppig’s Diagrammatic Tunings, John Charles Francis, 31.03.2006

Related Articles

• The Well-Tempered Clavier, Book 1, Yo Tomita, 1996

• The Hänfling/Bümler Temperament a Trigger for Bach’s Well-Tempered Clavier?, Thomas Braatz, 2005 (PDF File)

• Canone Harmonico, Johann Georg Neidhardt, 1724

• Canone Harmonico, Johann Georg Neidhardt, 1724 (PDF File)

• Andreas Sparschuh, Stimm-Arithmetik des wohltemperierten Klaviers, Deutsche Mathematiker Vereinigung Jahrestagung 1999, Mainz S.154-155

• Michael Zapf, Clavichord Discussion Group

• Keith Briggs, Letter to the editor, Early Music Review, 2003

Reviews

• Review of "Bach’s extraordinary temperament: our Rosetta Stone –1", John Charles Francis,14.02.2005 

• Open Letter to the Editor of Clavichord International, Michael Zapf, 25.06.2005

• Amplification of the letter published in the August 2005 edition of Early Music, Kenneth Mobbs 26.08.2005