Spiral chart: Difference between revisions
Undo revision 207452 by VectorGraphics (talk) Tag: Undo |
Undo revision 207425 by VectorGraphics (talk) Spiral charts are not just about arranging the chain of fifths into a spiral. They are a tool to compare two different edos, which Jensen did not do. Tag: Undo |
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A '''spiral chart''' is an illustration which converts a circle of repeats of an interval in one [[edo]] (or simply a temperament-agnostic chain of that interval) into a self-similar spiral shape, so that it may be compared with a circle of the same interval in a | A '''spiral chart''' is an illustration which converts a circle of repeats of an interval in one [[edo]] (or simply a temperament-agnostic chain of that interval) into a self-similar spiral shape, so that it may be compared with a circle of the same interval in a smaller coprime edo. | ||
Spiral charts were first known to be used by Jeff Jensen in 2004,<ref>https://jjensen.org/spiral5ths/Spiral5ths.html</ref> to describe the chain of fifths as it relates to 12edo. Much of the theory on this page, however, comes from [[Kite Giedraitis]], no later than April 2014 | Spiral charts were first known to be used by Jeff Jensen in 2004,<ref>https://jjensen.org/spiral5ths/Spiral5ths.html</ref> to describe the chain of fifths as it relates to 12edo. Much of the theory on this page, however, comes from [[Kite Giedraitis]], no later than April 2014 | ||