Changing The Temperament To An Arabian Or Other Scale (Scale Tune) - Roland Juno-Stage User Manual

Changing the Temperament to an Arabian
or Other Scale (Scale Tune)
Equal temperament is the method of tuning used by most music today,
including Western music. However, the JUNO-STAGE lets you
recreate other temperaments by individually altering the pitches of the
notes.
Using this feature, you change the temperament of the instrument to
that used for Baroque or other classical music, or set it for tunings used
in Arabian music.
This feature is called "Scale Tuning."
Scale tuning allows you to modify the pitch of each note in one-cent
steps (1/100th of a semitone) relative to the equal-tempered pitch.
1. Press [MENU].
2. Use [ ] [ ] to select "1. System," and press [ENTER].
The System Menu window will appear.
3. Press [2 (GENERAL)].
4. Press [3 (SOUND)].
Use [ ] [ ] to move the cursor to "Scale Tune Switch" or
5.
"Patch Scale Tune for C–B."
6. Use the VALUE dial or [DEC] [INC] to select the value.
Parameter Range
Scale Tune
OFF, ON
Switch
Patch Scale
Tune for -64–+63
C–B
If you want to save your settings, press [7 (WRITE)].
7.
8. Press [EXIT] to return to the previous screen.
When you're in Performance mode, you can specify the scale
tuning for each part. For details, refer to the performance
parameter "Part Scale Tune for C–B" (p. 143).
Explanation
Turn this ON if you want to perform
in a temperament other than equal
temperament.
Specifies the pitch difference in one-
cent steps (1/100th of a semitone)
relative to the equal-tempered pitch.
Chapter 3. Versatile Performance Functions
● Equal temperament
This divides the octave into twelve equal intervals, and is the
most widely used type of tuning, particular in Western music.
● Just intonation (tonic of C)
Compared to equal temperament, the principal triads have a
more pure sound in just intonation. However, this is the case
only in one key, and triads will sound ambiguous if you play
in a different key.
● Arabian scale
Compared to equal temperament, this scale pitches the E and
B notes a quarter-tone lower, and the C#, F#, and G# notes a
quarter-tone higher. There is a natural third (an interval
between a major third and a minor third) between G and B, C
and E, F and G#, Bb and C#, and Eb and F#.
On the JUNO-STAGE you can use Arabian temperament in
the three keys of G, C, and F.
Example: Tonic of C
If you want to use Just intonation with a tonic of C, or an Arabian
scale, set the "Scale Tune Switch" to "ON," and set "Patch Scale
Tune for C–B" as shown in the table.
Note name
temperament
C
C
D
E
E
F
F
G
G
A
B
B
Equal Just
intonation
0 0
0 -8
0 +4
0 +16
0 -14
0 -2
0 -10
0 +2
0 +14
0 -16
0 +14
0 -12
Arabian
scale
-6
+45
-2
-12
-51
-8
+43
-4
+47
0
-10
-49
53