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Performing with the Keyboard
Performing
Basic Operation of the Organ Part
■ The “Harmonic Bars” That Change the
Composition of the Organ Tone
The harmonic bars are controllers for creating the basic structure of the
organ sound.
By sliding nine harmonic bars in and out you can create a variety of
tonalities.
fig.04-08(HarmonicBar)
When percussion is on, the 1' pitch will not be produced (p. 38).
The numbers appearing on the harmonic bars allow you to rapidly set the
bars to the desired setting. If you push a harmonic bar inward until no
number is visible, its volume will be “0,” and no sound will be heard. If you
pull a harmonic bar all the way out, the volume will be at the maximum.
A sine wave (pure tone) of differing pitch is assigned to each of the harmonic
bars, and you can create a variety of sounds by mixing these sine waves.
fig.04-09(SettingHarmonicBar)
Time
Time
Time
8' volume: 8
4' volume: 5