Rhythm necklaces are circular representations of repeating or structural patterns. They've been applied in fields as varied as Crystallography, Radio Astronomy, Nuclear Physics, and Ethnomusicology. Using Euclidean geometry, computer scientist Godfried Toussaint found that many of the mathematical properties that make a musical rhythm enjoyable are found across cultures. It's also possible to influence how patterns are perceived with only minute changes to visual symmetry.
The Rhythm Necklaces iOS app is a musical sequencer for creating and mixing rhythmic patterns according to gestalt grouping principles and auditory scene analysis.
Meara will discuss some of the perceptual concepts behind the Rhythm Necklaces app, currently in production with Cycling 74's Sam Tarakajian.