Article ID: CBB001021214

Hearing the Irrational: Music and the Development of the Modern Concept of Number (2010)

unapi

Because the modern concept of number emerged within a quadrivium that included music alongside arithmetic, geometry, and astronomy, musical considerations affected mathematical developments. Michael Stifel embedded the then-paradoxical term irrational numbers (numerici irrationales) in a musical context (1544), though his philosophical aversion to the cloud of infinity surrounding such numbers finally outweighed his musical arguments in their favor. Girolamo Cardano gave the same status to irrational and rational quantities in his algebra (1545), for which his contemporaneous work on music suggested parallels and empirical examples. Nicola Vicentino's attempt to revive ancient enharmonic music (1555) required and hence defended the use of irrational proportions (proportiones inrationales) as if they were numbers. These developments emerged in richly interactive social and cultural milieus whose participants interwove musical and mathematical interests so closely that their intense controversies about ancient Greek music had repercussions for mathematics as well. The musical interests of Stifel, Cardano, and Vicentino influenced their respective treatments of irrational numbers. Practical as well as theoretical music both invited and opened the way for the recognition of a radically new concept of number, even in the teeth of paradox.

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Authors & Contributors
Confalonieri, Sara
Rommevaux-Tani, Sabine
Brooks, Michael
Boccadoro, Brenno
Zhao, Jiwei
Williams, Lambert
Journals
Bollettino di Storia delle Scienze Matematiche
British Society for the History of Mathematics Bulletin
Mefisto: Rivista di medicina, filosofia, storia
Ziran Kexueshi Yanjiu (Studies in the History of Natural Sciences)
Studies in History and Philosophy of Science
Science in Context
Publishers
University of Illinois Press
Scribe Publications
Princeton University Press
Concepts
Mathematics
Music
Irrational numbers
Number theory; number concept
Equations and formulae
Music theory
People
Cardano, Girolamo
Harriot, Thomas
Valles, Francisco de
Stifel, Michael
Stevin, Simon
Scheubel, Johann
Time Periods
16th century
Renaissance
17th century
15th century
Ancient
Early modern
Places
Italy
Nuremberg (Germany)
Flanders
Milan (Italy)
Greece
Germany
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