Institution 1694 9-7/8 C-c''' Harpsichord 8'8'4' Nicolaus Smithsonian (minus C#) de Quoco Institution 9-3/4 C/E-a'' Clavicytherium 8'8' Anonymous Smithsonian Institution [b]10-3/8 C/E-c''' Clavicytherium 4' Anonymous Boston Museum (Ottavina) of Fine Arts 11 C/E-c''' Polygonal 8' Anonymous Smithsonian virginal Institution [a] This length is approximate. It is double the length of the shortest string on the instrument. [b] In order to arrive at a meaningful average value for the string lengths of the nontransposing group, it was necessary to double the measured lengths of the pitch _C_ strings of the three instruments tuned an octave higher. -------+----------+--------- Figure | Negative | Catalog | Number | Number -------+----------+--------- 1 | 56322 | 326,905 2 | 46792 | 303,544 3 | 49355A | 303,544 4 | 49355B | 303,544 5 | 49356A | 303,544 6 | 49356 | 303,544 7 | 49356D | 332,173 8 | 49356D | 332,173 9 | 49357A | 332,173 10 | 49357 | 332,173 11 | 49355C | 332,173 12 | 46795 | 303,545 -------+----------+--------- GPO: 1970 O--380-228 For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington 25, D.C. Price 25 cents. FOOTNOTES: [1] Michael Praetorius, _Theatrum Instrumentorum_, Wolfenbuettel, 1620, pl. 14. [2] _Ibid._, pl. 6. [3] Querinus van Blankenburg, _Elementa Musica_, The Hague, 1739. [4] Translation by Arthur Mendel in "Devices for Transposition in the Organ before 1600," _Acta Musicologica_, 1949, p. 33. [5] Sibyl Marcuse, "Transposing Keyboards on Extant Flemish Harpsichords," _Musical Quarterly_, July 1952. [6] Michael Praetorius, _Syntagma Musicum_, Wolfenbuettel, 1614-1620, vol. 2 (Organographia), chapter 2. [7] Translation by Arthur Mendel in "Pitch in the 16th and early 17th Centuries, Part II," _Musical Quarterly_, April 1948. [8] Marin Mersenne, _Harmonie Universelle_, Paris, 1636, p. 101.