Owner`s manual
CQ:\IBINATIO~
ACTIO~-Any
device
on
an
organ
by
which
previously selected groups of stops can
be
brought
on
at
will
by
the depressing of a button (piston) or toe stud.
The
means
by
which these combinations are retained are:
• Pre-Set: Combinations that
do
not visibly affect the
stops already set up
on
the stop rail.
These
combina-
tions are selected and wired
in
at the factory. This
sys-
tem is
used
on
very sniall pipe organs and
on
some
inexpensive electronic organs, generally nol
of
the type
suitable for church
use.
•
lIold-and-Set:
The
combinations
are
retained
by
depressing the desired piston
and
physically moving thc
tabs
to
the desired positions \vhile holding the piston in.
• Capture: The combinations are set
by
depressing a
Set-
ter Piston (marked
SET)
and then depressing the piston
on
which
lhe
combination is to
be
set. Releasillg both
pistons then
captures
the
new
combination.
Rodgers Dual Memory Combination Action operates
in
both the Hold-and-Set and Capture
modes.
No
preset
sys-
tems arc
used
with Rodgers organs.
CONCERT
PITCH-All
Rodgers organs are set at the factory
at "concert
pitch"
(A440) where middle A
is
tuned to a
frequency of 440 Hertz (cycles) per second. Rodgers
Tun-
ing Control allows variation from A440 to match another
instrument or pipes, then instantly retunes to A440 when
the selector is pushed in.
CONTINUO-A
special microprocessor device
that
allows
stops or couplers of the
Pedal
Organ to sound from the
lowest
key
being played
in
the
bass
of
the Great Organ.
This provides pedal bass without having to
use
the pedal
keys.
It
is
an
extremely important feature for pianists sub-
stituting
on
the organ while learning pedal technique.
COUPLERS-There are two basic types:
• Inler-Manual: Enables
an
entire division to
be
played
on
another keyboard, usually at three diffcrent pitch
levels
(e.g.,
16' Swell to Great, 8' Swell to Great,
4'
Swell
to Great).
• Intra-Manual: Enables
an
entire division to
be
played
against itself
an
octave higher or lower (c.g., 16' Great
to Great,
4'
Swell to Swell),
or
silenced altogether
(e.g.,
Great Unison Off).
Sub
couplers are
at
the 16' pitcillevel, Unison couplers
at
the
8'
pitch and Super couplers at the
4'
pitch level.
A.G.O.
console specifications include all of these various types
of
couplers. Couplers greatly increase
an
organ's flexibility
and are
particularly
important
in
increasing
their
resources available
on
moderate
size
instruments.
c.P.U.-Central
Processing Unit. This
is
the microprocessor
unil
that controls a Rodgers organ. Many of the unique
features
of
a Rodgers organ and much of Rodgers' high
reliability level starts with this special organ computer.
CRESCENDO-In organ terminology. a Crescendo
Pedal
grad-
ua
lIy adds a pre-selected succession
of
stops
as
it
is
depressed.
When
fully depressed. the Crescendo
Pedal
results
in a Forte
organ
sound.
Normal
crescendo
sequences cut out all percussion. celeste and tremulants
when they
alX'
about one-third open. Rodgers Program-
mable Orchestral Crescendos give organists the chance to
create their own crescendo sequences which may include
celestes
and
tremulants fol' Romantic
uses.
DIVIDED EXPRESSION-Denotes more than
one
expression
pedal
on
an
organ,
so
that voices
on
one
division may
be
brought up
in
volume. whi
Ie
voices
in
another division
may
be
kept soft.
DRAWKNOB-,\,he oldest
ancl
most traditional manner of
operating the stops of lhe organ .
.'\
knob.
with the
name
of
the stop
on
it.
is
drawn out to turn
on
the stop. pushed
in
to
turn
it
off. Rodgers offers a lighted dl'<l\vknob system
which illuminates when turned on. Lighted drawknobs
provide
an
immediate unmistakable indication
of
stops
currently
in
use
and
do
not tend to stick or
have
high cur-
rent draw
of
mechanical systems. Because there
is
no
physical movement
when
lighted drawknobs arc activated
by the
combination
action.
the
system is
not
only
extremely reliable. but totally silent.
ECIIO
ORGAN-An
antiphonal organ
of
refined
and
soft
tone,
often
used
for effects of a very ethereal nature,
EN
CHAMADE-On
pipe organs. a loud. horizontal solo
reeel
stop.
On
Rodgers electroniC organs. a special exponential
horn and driver system with its
own
amplification. \vhich
carries only the loudest
reed
voice.
EXPRESSION
SHOE-A
foot-operated pedal which.
on
a pipe
organ. opens and closes the venetian shuttel's
of
a
swellbox. controlling the volume
of
an
organ division.
On
Rodgers electronic organs. the expression
shoe
controls
not only the volume. but also the treble, giving a "caged"
sound
when
closed. This more closely resembles a pipe
ol'gan sound that a volume-only control can.
FACADE-The
front display pipes that are exposed
and
visible
on
a pipe organ.
t'INISHlNG-
The
judgmental process whereby the various
tonal elements of
an
organ are adjusted. controlled. modi-
fied. and harnessed to provide the musical personality of
the instrument. Finishing must
be
done on-site
by
a
per-
son
with a fine ear
and
a sure knowledge
of
music.
To
be
finished.
an
instrument must
be
voiceable. This cllstom
fitting of
an
organ to its playing environment
is
vital to
fine organ installations, Digital tone electronic organs
cannot properly provide for on-site finishing since
they
cannot really
be
voiced in any manner analogous to voic-
ing in a pipe organ.
FLEMISH-TUN
ING-
The
cluster
of
partials
of
Flemish Caril-
lon where the tertian
is
flattened instead
of
natura I
as
in
the English Carillon. Flemish tuning
is
an allernate
on
most Rodgers carillons.
FLUE
STOPS-Non
-
reed
stops, namely the Foundation. Flute.
and String families. Flues generate their tones by the
action
of
a sheet
of
wind against a sharp lip. This
sets
a
column
of
air
in
motion within the wails of the pipe.
in
the
manner
of
a toy whistle.
FLUTES-The
tonal family that supports the Principa
Is
and
also provides another set of tonal colors for solo
and
accompaniment
voices.
Flutes may
be
open or stopped.
Open
flutes
arc
full
length
flue
stops
such as the
Hohlflote, Tapered flutes
such
as
the Spitzflote are nar-