Owner`s manual
General
Thnninology
These
definitions apply to Rodgers electronic organs, pipe augmented organs and full pipe organs.
Most definitions apply to the products
of
other builders,
as
well.
ACCESS
CODE-A
numeric
seQuence
of up to eight digits that
is
chosen
by
the organist to
be
used
as
the combination to
unlock
one
of
the combination action memories for pro-
gramming registrations.
ACTIVITY-An
effect which
in
pipe organs. causes a slight
random change,
or
a
fluttering
of
the pure tone. In
Rodgers electronic organs,
uniQue
digital circuitry
causes
random variation of the voices, imparting this pipe organ
charactcristic.
The
Chorus control activates this simula-
Lion
of the natural interaction of pipes
in
a pipe organ.
AEOLIAN-SKINNER
ORGAN
COMPANY-The famous
Bos-
Lon-based
organ buildel: directed
by
G.
Donald Harrison,
that
was
responsible for many notable pipe organ instal-
lations
and
for the development of the
"AM
ERICAN
CLAS-
SIC" school
of
organ
building.
In
1974.
Rodgers
purchased the complete sealings. records. drawings and
files
of
this celebrated organ
buildel~
A.G.O.-The organizaLion or organists. the American Guild
of
Organists.
The
A.G.O.
grants proficiency degrees
on
the
basis of annual examinations: Associate
(A
.
A.G.O.)
and
Fellow
W.A.G.o.).
It
publishes a monthly magazine,
The
American
Organise.
This organization
has
set specifica-
tions for the standardization of organ consoles, place-
ment
and
order of organ stop conlrols. inclusion
of
proper
couplers, etc.
AIR
PUFF-A
natural speech characteristic of classically
voiced pipes.
It
is
a transitory effect that gives the initial
breathiness heard from windblown pipes.
ALTERABLE
CARILLON-A
special programming of the Car-
illon stop
on
most Rodgers instruments that allows the
organist access to three separate tunings:
(1) Major-tuned
bells.
(2)
Minor-tuned bells, and
(3)
Flemish-tuned bells.
ALTERNATE
MIXTURE-An
altered state for a mixture
voice,
where the microprocessor assigns a completely different
mixture-higher
in pitch and brighter in
composition-to
the mixture stop control.
The
alternate mixture provides
the
harmonic crown to the
Reeds,
while the normal mix-
ture
is
designed for choral accompaniments.
ANCILLARY-On Rodgers
Pipe
Augmented Organs
an
elec-
tronic division that supplements stops that normally play
pipes.
The
organist may choose to play only pipes, only
electronics
or
both
on
these
voices
by
using the Ancillary
On
and
Pipes
Off stop controls.
ANTIPIIONAL-
This organ division
is
usually placed
at
the
opposite
end
of a room from the main organ.
It
is
used
for
echo
effects, altemating choruses. or for augmenting the
the main organ
in
congregational singing. In pipe organs
the
Antiphonal
is
a separate division. In electronic instru-
ments it would normally include most divisions speaking
through a separate amplification
and
speaker system.
AUDIO
CHANNELS-Separate
electronic networks
with
amplification that carry the electronic organ's voices to
the speaker system Normally three (two manual channels
and
a separate pedal channel)
is
the least separation
acceptable
in
a classical electronic organ.
AUTOMATIC
TURN-OFF-Rodgers
instruments
are pro-
grammed to automatically tum themselves
off
if
left idle
for more than two hours. A warning
is
flashed to the
organist before tuming off, in
case
the organist wishes to
reset the instrument.
TI1is
feature prevents the organ from
being left
on
by
mistake.
BLOWER-Electric
motor-driven units that produce the air
supply necessary in a pipe organ.
CELESTE-A
celeste
is
a special musical effect designed to
create the "orchestral sound" of multiple identical instru-
ments playing
at
the same time, e.g.,
as
section of violins.
On
pipe organs and many Rodgers organs a double set of
separate
and
individually tunable pitch sources are
used
to create celeste
voices.
Celeste effects and celeste tun-
ings are methods of creating celeste sound when a
sepa-
rate set
of
pitch sources are not available.
CELESTE
TRANSFER-A
special microprocessor controlled
coupler that allows celeste voices to transfer from the
Swell Organ to the Great Organ creating celeste accompa-
niment
on
the Great for solo voices
on
the Swell Organ.
CHEST
-A
Honduras Mahogany airtight box that contains
electric actions to release
air
streams into each pipe
according to the
keys
operated causing the pipes to
sound.
CHAMBER-A
room.
open
on
one
side,
in
which the pipes are
placed.
The
open side
is
often finished with grille cloth or
opens directly into the church or auditorium.
Tone
cham-
bers should idea lIy
have
an
interior finish of hard plaster
or Masonite for proper tone dispersion.
CHIFF-
The tranSient harmonic component that precedes the
tone
in
a pipe voiced
in
the classical manner.
On
electronic
organs, this is created
by
the momentary keying
of
a
higher pitch than the pitch being played. This type
of
artic-
ulation is useful
in
playing contrapuntal music.
CHOIR ORGAN-Generally denotes the bottom keyboard
of
a
three-manual organ. This division operates
as
an
accom-
panimental division,
and
also provides the stops for the
traditional
Positiv division.
It
contains both Principal
and
Flute ensembles with full couplers available to increase
its flexibility.
COAXIAL
CABLE-This
single wire supply line that carries
the data stream from the organ console to pipe cllests or
Glockenspiel.