1. An historical survey of meantone temperaments to 1620;Lindley;Early Keyboard J,1990
2. Bach's well-tempered clavier: the 48 preludes and fugues;Ledbetter,2002
3. Tentamen novae theoriae musicae;Euler,1968
4. Die Lehre von den Tonbeziehungen, vol. 16;Vogel,1975
5. A history of the Harpsichord, vol. 1;Kottick,2003