Roland HP 237 - Tuning Curve Selection; Panel Lock

Convenient Functions
Changing Tuning Curves
Pianos are commonly tuned so pitches in the lower registers
are adjusted relatively flat, and pitches in the higher registers
are tuned sharper compared to equal temperament. This
kind of tuning method for the piano is called “Stretch
Tuning.”
The graphic representation of the differences in pitch when
comparing equal-tempered tuning with the actual tuning
used is called the “Tuning Curve.” Changing the tuning
curve results in a subtle change in the sound of the chords.
HP 237 can switch the tuning curve.
“Type 2” (Stretch Tuning) is the power-on default for the
tuning curve.
Vibra-
phone
Electric red
Piano 2 =
Horpsi-
=
While holding down the [Piano 1] button,
[Electric Piano 1] button, and [Harpsichord]
button, the “C3” note to turn the setting
Type 1, or press the “D3” note to turn the
setting Type 2.
Type 1 Type 2
Electric Electric Harpsi-
Panoi Piano2 Pianot Piano2 chord
Ana o æ
While holding down three buttons
Press one of these keys 5
Description
Standard tuning curve. This is the right
choice when using Dual Play (p. 14), or
when playing in ensemble with other
instruments.
D3 Type 2 A tuning curve wherein the low and
high registers are widened slightly—
low pitches are a little lower, the high
pitches a little higher (Stretch Tuning).
Appropriate for piano solos.
(NOTE
This setting is only available with piano tones.
Disabling Buttons-Panel Lock
By using the Panel Lock function, you can disable the buttons
with the exception of certain operations. This is a convenient
way to prevent buttons from being pressed inadvertently,
changing the settings.
When the panel is locked, the following operations can be
performed.
- Play using the piano sound
- Changing keyboard touch sensitivity (p. 23)
- Key Transpose (p. 23)
- Master Tuning (p. 24)
1. Before switching the power on, turn the
volume all the way down.
Min Volume Max
2. Press the [Power] switch to turn off the
power.
3. While holding down the [Piano 1] button,
press the [Power] switch to turn on the
power.
Piano 1 Power
Deo
While holding down Press the [Power] switch
4. Adjust the volume.
Playing the keyboard now produces a Piano 1 sound.
It will not be possible to switch to another sound.
Switching the power off and back on again releases the
panel lock and returns the HP 237 to its usual state.
OS
f Panel Lock with the metronome enabled. y
If you turn on the power while holding down the
Metronome [On/Off] button, it will also be possible to
sound the metronome. You will also be able to adjust the
metronome tempo, time, volume, and sound.
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