26 Chapter 4
To check the currently selected temperament, hold down the TOUCH button, and
look at which of the above LEDs is turned on.
Note: When the power is turned on, the equal temperament will be automatically
selected.
About stretched tuning. In order to produce the most natural resonance, PIANO
1 and PIANO 2 sounds use a “stretched tuning” that makes the notes of the lower
range slightly flatter than equal temperament, and the upper range slightly sharper.
This is how an acoustic piano is normally tuned by professional tuners.
VIBES/GUITAR Kirnberger. This is the Kirnberger III scale invented by Johann Phillip
Kirnberger in the early 18th century, and is used mainly for tuning harpsi-
chords.
Both LEDs
turned off
Equal temperament. Nearly all keyboard instruments today use equal
temperament. This temperament spaces all semitones at equal dis-
tances, and allows identical scales to be played in any key.
Button Temperament
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