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The use of simple geometry and the local unit of measurement in the design of Italian stringed keyboard instruments:
an aid to attribution and to organological analysis
Grant O'Brien
Outline of this article - click on the chapter titles below in order to read this article:
Introduction (85Kb)
A virginal by Franciscus Patavinus (121Kb)
A virginal by Marcus Siculus
A harpsichord dated 1631 by Stefano Bolcioni
A virginal dated 1641 by Stefano Bolcioni
Further ways in which the
unit of measurement was used in the design of a virginal or harpsichord
Limitations of the method
and words of caution
Conclusions
Appendix 1
- Definitions of the Geometrical Functions
Appendix 2
- Italian Metrology c.1500 to 1800
Equivalent Measurements
Authors Consulted