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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.

Chord Dialer



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Title: Chord Dialer

Author: “Troy” (Donald Hammond)

Type: Educational

Summary: A simple printable, craftable chord dialer, using dozenal numbers to identify harmonious chords

A simple, printable chord-dialer, which uses the innate powers of the dozen to identify harmonious major and minor chords. Notes are identified both by dozenal numbers and by the traditional musical notation (C, D, etc.).