Antares ATR-1 Guide de l'utilisateur télécharger pdf (Page 30)

Antares Auto-Tune

• 24 Tone: Also know as the quarter-tone scale, this scale

is used for variety but has no advantage in terms of

ratios that better approximate pure intervals.

• 31 Tone: In addition to intervals that better

approximate pure intervals, this scale also contains

good approximations to Indonesian pelog and slendro

scales.

• 53 Tone: Related mathematically to the cycle of ﬁfths,

the 53-tone scale has very pure major and minor thirds,

and ﬁfths and fourths.

• Partch: Harry Partch is considered the father of modern

microtonality. This scale was devised by him and used in

instrument building and performances.

• Carlos Alpha: Wendy Carlos performed extensive

computer analysis to devise a number of equal-tempered

scales with good approximations for the primary

harmonic intervals and their inversions. This scale is

good at approximating the primary intervals including

7/4. This scale divides the octave into 15.385 steps,

forming intervals of 78.0 cents.

• Carlos Beta: This scale divides the octave into 18.809

steps, forming intervals of 63.8 cents.

• Carlos Gamma: This scale achieves perfect purity of the

primary intervals 3/2, 4/3 and 5/4. This scale divides

the octave into 34.188 steps, forming intervals of 35.1

cents.

• Harmonic (chromatic): This twelve-tone scale is

created in the partials in the ﬁfth octave of the harmonic

series. The scale degrees that correspond to the classic

Just intervals are the major second, major third, perfect

ﬁfth, and major seventh.

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Antares ATR-1 Guide de l'utilisateur Page 30