From Circle to Hyperspheres
Episode I :
When Tonnetze go 4D
Chapters
- 0 Intro
- 1 Newton Circle
- 2 Planar Tonnetze
- 3 Torus and traditional 3D Spaces
- 4 Combining 2x 2D Spaces
- 5 Planet 4D Pitch and Chordal Space
- 6 Traditional Chordal Spaces in 2D
- 7 Ideograms in 3 parametric dimensions
- 8 The Hypersphere of Chords
- 9 The Hypersphere of Anysets
This Panel shows some chosen geometrical models representing the 12 tone equal tempered system that I’ve either re-colorized, reconstructed in 3D, or self-created from scratch in 3D or 4D during my PhD.
The examples are ordered by geometrical complexity. We start with the simplest circle and end up with a true 4D model that resides on a hypersphere.
The pedagogic purpose of this visualization is not to list or prefer any particular existing model but to illustrate the one I have created.
We will progressively familiarize the
spectator to the concepts of hyper-symmetry and four dimensional spaces.
Premiered at IRCAM Paris , 2011
Embeded Youtube Playlist :
From Circle to Hyperspheres Chap00 /
From Circle to Hyperspheres Chap00 /
From Circle to Hyperspheres, when Tonnetze go 4D. Scenario here : ...
From Circle to Hyperspheres Chap 01/09
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From Circle to Hyperspheres Chap 02/09
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ACT 2 TWO DIMENSIONS :
PLANAR TONNETZ
We present the multi-dimensional ideographic system that will be used in all this ...study. Then, from Hugo Riemann's original drawing, we build up an infinite plane representing an infinite Tonnetz on a plane.[+] Show More
From Circle to Hyperspheres Chap 03/09
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ACT 3 THREE DIMENSIONS :
TORUS & TONNETZ IN TRADITIONAL SPACE
We show the decomposition Z12=Z3xZ4, then build the ...Planet-3D Volume from triangles and squares, and then, match into Guerino Mazzola's Torus of Thirds.[+] Show More
From Circle to Hyperspheres Chap 04/09
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ACT 4 FOUR DIMENSIONS :
COMBINING TWO 2D SPACES
We show that the quaternionic space used is made of ...two complex spaces. This 3D animation demonstrates that the model cannot rotate symmetrically in 3D without deforming, and must be set in motion and resides in a four dimensional space.[+] Show More
From Circle to Hyperspheres Chap 05/09
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ACT 5 FOUR DIMENSIONS :
THE PLANET-4D PITCH AND CHORDAL SPACE
We now visualize the pitch space in a ...true four-dimensional space, by projecting it into our 3D space and letting it rotate around two 4D Axes. The same rotating ball that symbolize the current position, never moves while the models rotates. Thanks to this technique, the model appears to be deforming within a 3D sphere. That reinforces the feelings of symmetry for the spectator.[+] Show More
From Circle to Hyperspheres Chap 06/09
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ACT 6 TWO DIMENSIONS :
TRADITIONAL CHORDAL SPACES
Back to the traditional Tonnetz, we build up the hexagonal one and ...match with Julian Hook's Tonnetz, then with Jack Douthett and Peter Steinbach's "Chicken Wire" drawing[+] Show More
From Circle to Hyperspheres Chap 07/09
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ACT 7 THREE DIMENSIONS :
3D IDEOGRAMS
Since we now use chords, we need a third ideographic dimension that will ...illustrate the chord type.[+] Show More
From Circle to Hyperspheres Chap 08/09
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ACT 8 FOUR DIMENSIONS :
THE HYPERSPHERE OF CHORDS
We consider the nodes of the Planet-4D model as pitch ...classes and build a hypersphere containing 24 chords. This is equivalent to the planar construction of the dual space of the Tonnetz, but in four dimensions. This is adapted to tonal music where chords are similar to perfect triads.[+] Show More
From Circle to Hyperspheres Chap 09/09
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ACT 9 FOUR DIMENSIONS :
THE HYPERSPHERE OF ANY SET
We extend the precedent concept to be able to ...represent other chords than perfect triads and show the limitations of the model. The first animation is 3D only to explain the concept of spherical barycenter that we will apply in 4D.The Hypersphere of AnySet is better adapted to some types of atonal music.[+] Show More
From Circle to Hyperspheres Chap 99 Extro
From Circle to Hyperspheres, when Tonnetze go 4D. Scenario here : ...
Please refer to my Papers Section for scientific description,