Erlebnisland Mathematik | Technische Sammlungen Dresden | Junghanstraße 1-3 | 01277 Dresden
Erlebnisland Mathematik

Polyhedron of Triads

The structure displays the geometry of harmonic intervals in diatonic music. The vertices correspond to the tones, the faces to the triads.

Touching a vertex will cause the corresponding tone to sound. You can discover major and minor chords and the circle of fifths.

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