Medeli A1000 Owner's Manual page 26

Voice
Pure Major & Pure Minor
The just intonation is any musical tuning in which is based on the stack
of intervals called perfect fifth and major third of overtone series. And
the major scale which consisted of just intonations especially for this
triad chords: Root, Third, Fifth are sounded extremely harmony. The
just intonation must be the most natural temperament.
Pythagorean
The Pythagorean System, the oldest tuning system to be theorized in
the world, also called Circle-of-fifths System. This system was first
devised by the Pythagorean, hence people named it by his name. The
Pythagorean System comes from Circle-of-fifths System, which applies
this principle: The pitches of three times of subdominant and the twice
times of supertonic are equal, to create a series of perfect fifths, and
then find the equal scale notes put them into a single octave. The 3rd
and 6th in this tuning are dissonance, but the 4th and 5th are sound
very harmony.
Meantone
The Meantone System is a musical temperament which is close to just
intonation. Used to tuning pipe organ in 16th century Europe. These
musical scales which based on the Pythagorean System, minus
quarter of common comma for once, are extremely approaching just
intonation. So, use this system to create musical scales are sound
beautiful and pure, just like a perfect triad chord.
Werckmeister
The Werkmeister was named after Andreas Werckmeister, and this
scale was created as an improvement on the Pythagorean scale. This
tuning collapse comma maxima, created by Pythagorean, into four
perfect fifths, the rest fifths still remain their Pythagorean scale
characteristics. Werkmeister Tuning can tune scale from harmonic to
melodic by increasing tone number, makes each tonality sound distinct
(this is the important gist for classicists and romanticism tonality music
to name as the tone name)
Arabic
The Arabic tunings are specified to easily playing Arabic music.
Tune the individual note
You can also tuning every individual note if necessary.
1. In the scale tune setting area, press the mini value button, which
corresponding to each keyboard (top/bottom), to call up a pop-up
box showing the adjustable range of tune. Then adjust the
parameter to an appropriate value.
We introduce the C0 as an example:
A. Press the C"0" button to call up an adjustment pop-up box.
B. Use the DATA DIAL or [+] / [-] button to adjust parameter value. Or
you can also press the screen button "▲" or "▼".
Note:
Press the [+] and [-] buttons simultaneously, the tune of note will revert
to the default setting of selected scale type.
Save to User Scale
You can save the edited scale tune setting to user scale. With this
operation, it becomes very easy to call up your own expectation scale
type.
1. In the scale tune setting area, press the Save to "..." button.
2. There are totally 3 user scale positions you can choose: User 1,
User 2, and User 3.
Select the dot form in front of each user scale tune name.
3. Press "OK" to confirm saving operation, or press "CANCEL" to quit
save user scale.
Note:
If you select a user scale position, which already contains user scale
tune data. The system will automatically delete the original user
settings, and replaces it with your new user scale tune data.
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