12edo: Difference between revisions
m →Intervals: Add the kalismic counterpart of 99/70 = 140/99 |
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== Theory == | == Theory == | ||
12edo achieved its position as the standard Western tuning system through a combination of theoretical properties and practicality. | 12edo achieved its position as the standard Western tuning system through a combination of theoretical properties and practicality. | ||
It is the smallest number of equal divisions of the octave ([[edo]]) which can seriously claim to represent [[5-limit]] harmony, and because it represents a [[meantone]] temperament | It is the smallest number of equal divisions of the octave ([[edo]]) which can seriously claim to represent [[5-limit]] harmony, and because it represents a [[meantone]] temperament. | ||
It divides the octave into twelve equal parts, each of exactly 100 [[cent]]s | It divides the octave into twelve equal parts, each of exactly 100 [[cent]]s. It has a [[3/2|fifth]] which is quite accurate at 700 cents, two cents flat of just. It has a [[5/4|major third]] which is 13.7 cents sharp of just, which, while reasonable for its size, is unsatisfactory for some. The [[6/5|minor third]] is even less accurate, being 15.6 cents flat of just. | ||
Historically, 12edo became dominant primarily due to practical considerations for keyboard instruments and its ability to handle modulation across all keys with reasonable intonation. | Historically, 12edo became dominant primarily due to practical considerations for keyboard instruments and its ability to handle modulation across all keys with reasonable intonation. | ||