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Dozenal Society of America
Promoting base twelve and alternative base mathematics
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The Dozenal Society of America
The DSA is a voluntary, nonprofit education corporation, organized for the conduct of research and education of the public in the use of dozenal (also called duodecimal or base-twelve) in calculations, mathematics, weights and measures, and other branches of pure and applied science.

Trigons to Triads

Title: Trigons to Triads: A Play on Chords
Author: Troy (Donald Hammond)
Year: 119E
Subject: An exploration of triangles; Pythagorean triples; and their innate dozenal properties in relation to musical chords.
"Troy" (Donald Hammond, of the DSGB) writes a fascinating little article about triangles; Pythagorean triples; and how they relate to chords, and provides a wonderful little printable "chord dialer" that uses the innate properties of the dozen to identify harmonious chords for music.