Orwell comma

Orwell comma

In musical tuning, the Orwell comma (About this sound Play (help·info)) is a very small musical interval of 13.07 cents and frequency ratio of 1728:1715 or 26·33 : 5·73[1]. It is so named because the temperament eliminating this comma, Orwell temperament, has an optimal generator very close to 19 steps out of 84-equal temperament; this pattern of 19/84 steps is similar to the title of Orwell's novel 1984.[citation needed]

Sources

  1. ^ http://www.huygens-fokker.org/docs/intervals.html
v · d · eIntervals (list)
Numbers in brackets are the number of semitones in the interval.
Fractional semitones are approximate.
Twelve-semitone
(Western)
Perfect
unison (0) · fourth (5) · fifth (7) · octave (12) · fifteenth (24)
Major
second (2) · third (4) · sixth (9) · seventh (11)
Minor
second (1) · third (3) · sixth (8) · seventh (10)
Augmented
unison (1) · second (3) · third (5) · fourth (6) · fifth (8) · sixth (10) · seventh (12) · octave (13)
Diminished
unison (-1) · second (0) · third (2) · fourth (4) · fifth (6) · sixth (7) · seventh (9) · octave (11)
Compound
ninth (13 or 14) · tenth (15 or 16) · eleventh (17) · thirteenth (18 or 19)
Other systems
Supermajor
second (2⅓) · third (4⅓) · sixth (9⅓) · seventh (11⅓)
Neutral
second (1½) · third (3½) · sixth (8½) · seventh (10½)
Subminor
second (⅔) · third (2⅔) · sixth (7⅔) · seventh (9⅔)
7-limit
chromatic semitone (⅔) · diatonic semitone (1⅙) · whole tone (2⅓) · subminor third (2⅔) · supermajor third (4⅓) · harmonic (subminor) seventh (9⅔)
Other intervals
Groups

Pythagorean comma · Pythagorean apotome · Pythagorean limma · Diesis · Septimal diesis · Septimal comma · Syntonic comma · Schisma · Diaschisma · Major limma · Ragisma · Breedsma · Kleisma · Septimal kleisma · Septimal semicomma · Orwell comma · Semicomma · Septimal sixth-tone · Septimal quarter tone · Septimal third-tone
Measurement
Others
Quarter tone · Wolf · Ditone · Semiditone · Holdrian comma · Secor



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