Intonation Map - Kurzweil Forte Musician's Manual

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Intonation Map

Most modern western music uses what is known as equal temperament. This means that the
interval between each semitone of the 12 tone octave is precisely the same as every other
semitone.
However, many different intonation intervals have evolved over the centuries and across
cultures and instruments, so equal temperament will not sound appropriate for certain styles
of music. The Forte supplies you with 18 different factory intonation maps which are useful
for a range of different styles.
Like many instruments before the adaptation of equal temperament, most of these
intonation maps were designed to sound best in one specific key. Though some may have
historically been in a different key, all of the Fortes factory intonation maps are set to root
note C by default. You can change the root key of the current intonation map by using the
Int.Key parameter (see the Intonation Key (Int.Key) section below.)
0 None
1 Equal
2 Just
3 Just/b7th
4 Harmonic
5 JustHarm
6 Werkmeister
7 1/5thComma
8 1/4thComma
9 IndianRaga
10 Arabic
11 BaliJava1
12 BaliJava2
13 BaliJava3
14 Tibetan
15 Carlos A
16 Pyth/aug4
17 Pyth/dim5
18 EastMed
10-8
No intonation map is used, intonation is equal.
No detuning of any intervals. The standard for modern western music.
Tunings are defi ned based on the ratios of the frequencies between
intervals. The original tuning of Classical European music.
Similar to Just, but with the Dominant 7th fl atted an additional 15 cents.
The perfect 4th, Tritone, and Dominant 7th are heavily fl atted.
Approximation of a historical intonation.
Named for its inventor, Andreas Werkmeister. It's fairly close to equal
temperament, and was developed to enable transposition with less
dissonance.
Approximation of a historical intonation based on the comma system.
Approximation of a historical intonation based on the comma system.
Based on the tunings for traditional Indian music.
Oriented toward the tunings of Mid-Eastern music.
Based on the pentatonic scale of Balinese and Javanese music.
A variation on BaliJava1, slightly more subtle overall.
A more extreme variation.
Based on the Chinese pentatonic scale.
Developed by Wendy Carlos, an innovator in microtonal tunings, this
intonation map fl ats each interval increasingly, resulting in an octave
with quarter-tone intervals.
This is a Pythagorean tuning, based on the Greek pentatonic scale. The
tritone is 12 cents sharp.
This is a Pythagorean tuning, based on the Greek pentatonic scale. The
tritone is 12 cents fl at.
Eastern Mediteranean. The Major 3rd and Major 7th are fl at by 50 cents.