Drawbars & Percussion
3
- C O N S O N A N T H A R M O N IC S -
- D IS S O N A N T H A R M O N IC S -
Color Groups
White Drawbars
The first white Drawbar represents the “fundamental” or “8' base”
tone. All of the other white Drawbars are octave intervals or
harmonics of the fundamental tone. The tonal brilliance is greatly
increased by adding white Drawbars, but the harmonics added are
always in “consonance” or harmony.
TRY THIS:
1.
Make sure all Drawbars are “IN” (off).
2.
Hold down middle “C” on the manual (or the Upper Manual on the Sk2).
3.
Pull the first white Drawbar all the way out.
4.
Now, one by one, pull the other white Drawbars out in sequence.
As you add each Drawbar, you will hear the addition of the same note an octave higher in each case.
Black Drawbars
The Black Drawbars on the Hammond Organ represent the dissonant
(discordant) harmonics which are also necessary in building rich tone
colors. The mellowness of a horn, the pungency of strings, and the
brilliance of reed voices owe much of their character to the presence
of these harmonics in different degrees.
TRY THIS:
1.
Make sure all Drawbars are “IN” (off).
2.
Hold down middle “C” on the manual (or the Upper Manual on the Sk2).
3.
Pull the first white Drawbar in the second group of Drawbars for the Swell Manual, marked 8', all the way
out.
4.
Now pull the 3 Black Drawbars in the second group of Drawbars for the Swell
Manual all the way out.
The sound produced by the Drawbars is that of a clarinet.
Summary of Contents for Sk-series
Page 1: ... 73 88 DRAWBARS PERCUSSION ...
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