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Convenient Functions
Adjusting the Pitch of the
Sound–Master Tuning
In situations such as when playing in ensemble with other
instruments, you can adjust the HP 237R’s reference pitch to
that of another instrument.
Middle A is generally used as the standard reference pitch
for tuning instruments.
When playing in ensemble with other instruments, set each
instrument to the same reference pitch to ensure that you
will be in tune with each other. This tuning of all the
instruments to a reference pitch is called “Master Tuning.”
The reference pitch can be set to any value from 415.3 Hz–
466.2 Hz.
“440.0 Hz” is the power-on default for the reference pitch.
Use the C4–D#4 notes to adjust the pitch.
fig.7-06
■ Lowering/ raising the Reference
Pitch
While holding down the [Demo Song/Key
Touch] button, press the “C4” note to lower
the reference pitch, or the “D4” note to
raise it.
fig.7-07.e
Each time you press the “C4” key, the pitch will fall by
0.1 Hz. If you continue holding the key, the pitch will
continue falling.
Each time you press the “D4” key, the pitch will rise by
0.1 Hz. If you continue holding the key, the pitch will
continue rising.
■ Setting the Reference Pitch to
440.0 Hz
While holding down the [Demo Song/Key
Touch] button, press the “C#4” key on the
keyboard.
fig.7-08.e
The reference pitch will be set to 440.0 Hz. This is the
most commonly used setting. The A4 (Middle A) key
will sound at 440.0 Hz.
■ Setting the Reference Pitch to
442.0 Hz
While holding down the [Demo Song/Key
Touch] button, press the “D#4” key on the
keyboard.
fig.7-09.e
The standard pitch will be set to 442.0 Hz. This setting is
often used for concert pianos. The A4 (Middle A) key
will sound at 442.0 Hz.
120168
Tempo Beat
20840 608096
3602 4
Play Rec Demo SongSound On/ Off
Metronome
C4~D#4
Demo Song
Demo Song
C4
D4
While holding down
Raises
the pitch
Lowers
the pitch
Press
C#4
Demo Song
While holding down
Press
D#4
Demo Song
While holding down
Press
Sounding a reference tone while you
adjust the pitch
Holding down the [Demo Song/Key Touch] button,
press the [Sound] button, and while continuing to hold
down the two buttons, press the corresponding key.
You can hear a reference tone (Middle A) as you adjust
the pitch.