Percussion - Key B Organ Viscount Legend Expander Mode D'emploi

User Manual
HARMONIC
SERIE
PIPE
INTONATION
SCALE
PITCH
CORRESPONDING
NOTE
To know the relationship between the sound generated by various drawbars it is necessary to divide the size in
feet of a given drawbar for the size of the first drawbar to the left (that generates the same sound of a 16' pipe).
The white drawbars are those whose relationship with 16' is a power of 2 (2, 4, 8 and 16), this means that these
drawbars have intervals of one or more octaves among them. The octave interval is considered the "purest",
and the white color indicates this interval. Registers that have intervals different from the octave are marked by
the black color. An exception is made for the first two drawbars, as the first is not white even though it has an
interval of an octave, while the second seems to violate the harmonic scale (from low to high). These drawbars
are brown in color, as they are sub-harmonics of the 8' register, which is traditionally considered the root note.
Making an other comparison with an equalizer, drawbars can be used to generate sound according to
frequency; the first two drawbars on the left (16' and 5 1/3') control bass, the central group of four drawbars
(8', 4', 2 2/3 'and 2') define the main sound and the last three drawbars (1 3/5', 1 1/3' and 1') adjust the sound
brightness.
Legend Exp
allows you to choose which section to control through the 9 drawbars. To do so, use the
DRAWBARS section buttons on the front panel:
- [UPPER]: the drawbars control the sound of the Upper section.
- [LOWER]: the drawbars control the sound of the Lower section.
- [PEDALS]: the drawbars control the sound of the Pedals section.

4.3 PERCUSSION

The percussion is a classic feature of electromechanical organs. It
generates a harmonic with a quick attack and an exponential
decay, that is added to the sound generated by the drawbars.
In the original electromechanical organs, the percussion was
generated only on the upper manual and the sound produced by
the drawbar 1' was muted when the percussion was activated.
Legend Exp
has the same features, and the percussion is only
played on the Upper section (which represents the upper manual).
To activate the percussion, use the tab [ON/OFF] button of the front
panel.
Percussion volume can be adjusted through the [SOFT/NORM] button.
In NORMAL mode (led off) volume is set through the PERCUSSION VOLUME parameter (see par. 5.5).
In SOFT mode (led on) the volume is decreased.
Level
Note On
16' 5-1/3'
SUB-
5th
UNISON OCTAVE
OCTAVE
C2 G3
Percussion signal level
Drawbar signal level
Time
Note Off
NORMAL Percussion
8' 4' 2-2/3' 2'
12th 15th
C3 C4 G4 C5
Level
Attenuated Percussion signal level
Note On
SOFT Percussion
EN - 12
1-3/5' 1-1/3' 1'
17th 19th 22th
E5 G5 C6
Drawbar signal level
Time
Note Off