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What is the name of a circular clock-like diagram in which you can place a triad shape and rotate it to get the notes in a chord of a particular type?

What is the name of a circular clock-like diagram in which you can place a triad shape and rotate it to get the notes in a chord of a particular type?

Sounds like you are referring to the Tone Clock: Peter Schat's 'Zodiac of the Hours', which graphically represents the tone-clock steerings of the twelve hours.

Spelled Is it spelled
Is it spelled
Is it spelled grammar?Is it spelled or spelt?Is it spelt or spelled Australia?How do you use spelt in a sentence?Is it spelled grammar?Grammar is the ...
Tritone Walking bass, two bars per chord, on tritone substitution
Walking bass, two bars per chord, on tritone substitution
How to use tritone substitutions?What scale to use for tritone substitution?When to use tritone substitution?What is a tritone substitution guitar?How...
Note Arrow over notes
Arrow over notes
This is the symbol that most musicians mean when they say accent mark. It indicates that the marked note should have an emphasized beginning and then ...