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The Geometry of Musical Rhythm - Godfried T. Toussaint

The Geometry of Musical Rhythm

What Makes a "Good" Rhythm Good?
Buch | Softcover
365 Seiten
2013
Crc Press Inc (Verlag)
978-1-4665-1202-3 (ISBN)
CHF 59,95 inkl. MwSt
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The Geometry of Musical Rhythm: What Makes a "Good" Rhythm Good? is the first book to provide a systematic and accessible computational geometric analysis of the musical rhythms of the world. It explains how the study of the mathematical properties of musical rhythm generates common mathematical problems that arise in a variety of seemingly disparate fields. For the music community, the book also introduces the distance approach to phylogenetic analysis and illustrates its application to the study of musical rhythm. Accessible to both academics and musicians, the text requires a minimal set of prerequisites.





Emphasizing a visual geometric treatment of musical rhythm and its underlying structures, the author—an eminent computer scientist and music theory researcher—presents new symbolic geometric approaches and often compares them to existing methods. He shows how distance geometry and phylogenetic analysis can be used in comparative musicology, ethnomusicology, and evolutionary musicology research. The book also strengthens the bridge between these disciplines and mathematical music theory. Many concepts are illustrated with examples using a group of six distinguished rhythms that feature prominently in world music, including the clave son.





Exploring the mathematical properties of good rhythms, this book offers an original computational geometric approach for analyzing musical rhythm and its underlying structures. With numerous figures to complement the explanations, it is suitable for a wide audience, from musicians, composers, and electronic music programmers to music theorists and psychologists to computer scientists and mathematicians. It can also be used in an undergraduate course on music technology, music and computers, or music and mathematics.

What Is Rhythm?





A Steady Beat





Timelines, Ostinatos, and Meter





The Wooden Claves





The Iron Bells





The Clave Son





Six Distinguished Rhythm Timelines





The Distance Geometry of Rhythm





Classification of Rhythms





Binary and Ternary Rhythms





The Isomorphism of Rhythm and Scale





Binarization, Ternarization, and Quantization of Rhythms





Syncopated Rhythms
Keith's Measure of Syncopation





Necklaces and Bracelets





Rhythmic Oddity





Off-Beat Rhythms





Rhythm Complexity
Objective, Cognitive, and Performance Complexities
Lempel-Ziv Complexity
Cognitive Complexity of Rhythms
Irregularity and the Normalized Pairwise Variability Index





Dispersion Problems and Maximally Even Rhythms





Euclidean Rhythms





Leap Years: The Rhythm of the Stars





Approximately Even Rhythms





Rhythms and Crystallography





Complementary Rhythms





Radio Astronomy and Flat Rhythms





Deep Rhythms





Shelling Rhythms





Phantom Rhythms





Reflection Rhythms and Rhythmic Canons





Toggle Rhythms





Symmetric Rhythms
Hourglass Drums and Hourglass Rhythms





Odd Rhythms





Other Representations of Rhythm
Alternating-Hands Box Notation
Spectral Notation
TEDAS and Chronotonic Notation





Rhythmic Similarity and Dissimilarity





Regular and Irregular Rhythms


Evolution and Phylogenesis of Musical Rhythm
Guajira





Rhythmic Combinatorics


What Makes the Clave Son Such a Good Rhythm?
Maximal Evenness
Rhythmic Oddity
Off-Beatness
Weighted Off-Beatness
Metrical Complexity
Main-Beat Onsets and Closure
Distinct Durations
Distinct Adjacent Durations
Onset-Complexity and Distinct Distances
Deep Rhythms, Deepness, and Shallowness
Tallness
Phylogenetic Tree Centrality
Mirror Symmetry
Shadow Contour Isomorphism





The Origin, Evolution, and Migration of the Clave Son





Epilogue


References


Index

Zusatzinfo 289 Illustrations, black and white
Verlagsort Bosa Roca
Sprache englisch
Maße 178 x 254 mm
Gewicht 635 g
Themenwelt Kunst / Musik / Theater Musik Musiktheorie / Musiklehre
Mathematik / Informatik Mathematik Geometrie / Topologie
Naturwissenschaften Physik / Astronomie
ISBN-10 1-4665-1202-4 / 1466512024
ISBN-13 978-1-4665-1202-3 / 9781466512023
Zustand Neuware
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