Although
the instrument was built into a
chamber on the North side of the
chancel, it was so well voiced that
the sound was uniform when heard
from all points in the nave.
No one could find fault with the
combinations of stops, whether pp or
ff, irrespective of the coupling of
manuals. Such an instrument
was a joy to play in chorus passages
of organ works and indeed in the
accompaniment of choir or
congregational singing. What I
did find somewhat wasteful was the
inclusion of a 4' fifteenth on the
pedal where the obvious extra rank
should have been a 16' trombone.
What
one finds lacking is the
availability of colours for a solo
voice passage. The Swell can
provide the Gedackt and the Fagotto
played at the 8ve accompanied by the
Great Dulciana. The Horn (a
robust mf with the box open)
accompanied by the Great Stopped
Diapason alone or with the 4' Flute
is another possibility.
The
Great Stopped Diapason and the Wald
Flote singly are pleasing quiet solo
voices as is the Violin Diapason in
the tenor & alto
registers. The Trumpet is very
much a chorus reed and has no real
nature to make a penetrating
impact. Its solo voice is more
in keeping with the more delicate
trumpet work necessary in earlier
17th century works, e.g. de Grigny.
Oh,
for a third manual of the
choir/positif variety! But a
major extension that this would
entail would be economically
prohibitive. Luckily I had the
ideal answer - a digital
synthesizer. The one I
employed was the Casio CZ1000
although a CZ3000 would have been
preferable. Even today a
synth. of this nature can be bought
second-hand for £200 to £250.
Much
has been written about the pipe
organ v. the electronic organ
and I certainly would agree
with a fair proportion of comments
but certainly not all.
Here are choice observations by
Frank Iacino (1):-
"Electronic
organ
speakers
do not distribute sound in the
same manner as organ pipes. The
latter send out sound waves in all
directions. Except for very low
tones, speakers (including
exponential horn types) are
directional.
When a pipe organ
vibrantly resounds in a large
building, the tone is coming
from many diverse sources in
many different positions. These
positions are three-dimensional,
and it is this factor that
creates the effect of "spatial
dimension". This effect causes
the sound to appear to be coming
from everywhere at the same
time. Consequently, the music
floods the whole cubic dimension
like a tidal wave.
ll
When
an electronic organ speaks, the
tone comes from one or more tone
cabinets. The directional effect
is quite apparent and produces a
"beam effect". This "beam
effect" causes the tone to be
irregular throughout the
auditorium."
ll
This
is all indeed true in synthesized
combinations. A badly
amplified synthesized 'full swell'
can be absolutely dreadful when
compared with a pipe organ
delivery. Nevertheless
many 'flue' combinations of
electronic design can be enhanced
by the number of speakers or a
speaker of the Leslie variety
which gives a much greater spread
of sound to combat the 'beam
effect'. Where the
synthesizer triumphs is in the
provision of a single timbre, e.g.
strings, flute, clarinet &
orchestral oboe or a combination
of two in a four channel machine,
e.g. 8' clarinet and 22/3'nazard of the flute
variety. The placing
of the amplifier in the centre of
the organ chamber allows the solo
voice to issue from the same area
as the pipe accompaniment.
ll
If
one wishes further dissertation on
the voicing of the organ pipe, the
website
by Colin Pykett provides a wealth
of in-depth
technicalities. In his
"How the Flue Pipe Speaks", Colin
Pykett gives exactly what is
required in voicing.
Frank
Iacino gives the following
definitive statement on voicing:- (2)
1. The rate of
the tonal build-up and the
change of the harmonic structure
as the tone matures.
2. The degree of tonal
steadiness and the shape of the
harmonic structure
3. The rate of decay
and the change of the harmonic
structure during the decay
process.
ll
Now
this is exactly what governs the
program in setting a synthesized
voice - the attack of the sound
(the transient in organ pipes),
the sustain, the decay and the
release of the note. This is
termed the ADSR graph (attack,
decay, sustain, release). What is
added, however, is one complete
rank/voice adjusted at the consol
to take into account the
reverberation in the
building. Would that
the pipe voicer had this facility
to hand in organ building, thereby
cutting both time and costs.
The above graph is laid
down step by step for each voice
singly or in combination. One
can think of the Casio digital
synthesizer's programming mechanism
as its own inbuilt computer to
manufacture the
settings. As I have
already stated, these voices should
be built in the church and the
organist's ear, as in the skills of
a tuner, will force the synth to
conform to the attack, decay,
sustain and release of the organ
pipes with the church's acoustics as
a secondary
factor. The volume
of each program will depend whether
it is reproducing a soft positif
combination or a solo
tuba. N.B. The volume of
the amplifier will remain constant -
it is the work of the synth program
to determine the necessary volumes.
Below are a number of
settings for the Casio range of
synthesizers. We are concerned
with the following basic steps in
programming the synth. All of
the settings are displayed on an
LCD:-
Parameter Section
1.
wave forms
.........a) sine wave -
pure tone e.g. bourdon, flutes 8'
& 4', piccolo
//////////////////
.........b) triangle wave -
suitable for producing diapason
ranks
//////////////////
.........c) square wave -
suitable for bass clarinet &
clarinet sounds
//////////////////
.........d) sawtooth wave -
harsher than the above, suitable
for orchestral oboe, cornopean, /////////////horn,trumpets,
tuba, trombone, bombarde &
contra bombarde
//////////////////
2.
envelope settings
.........a) DCO
(digital
controlled
oscillator) using 1 oscillator per
voice allows 8 note
.............polyphony i.e.
full chords ; 2 oscillators allows
only 4 note polyphony - 4 note
chords.
.........b) DCW
(digital controlled waveform)
changes the timbre of the sound
over time.
.........c) DCA
(digital
controlled
amplitude) decides the volume
required.
3.
vibrato = the organ
tremulant and can vary the rate
per minute of vibrato and
the depth.
4.
octave = similar to
the effect of an organ coupler -
raises the pitch up or down one
octave.
5.
detune = fine-tuning
the note e.g. up a octave and a
fifth to produce a nazard 22/3',
although/the synth requires
this entry to be 1 octave and 07
notes (i.e.semitones).
The following are a
few examples of charts with all
the settings filled in to enable
the user to find a few voices
immediately as starters:-
//Dulciana
8'
/
|
MODU
|
LATION |
< |
DET
|
UNE |
>
|
< |
VIB
|
RATO |
>
|
OCT
|
AVE |
line
select
|
ring
|
noise
|
+/-
|
octv
|
note
|
fine
|
wave
|
delay
|
rate
|
depth
|
+/-
|
range
|
1
|
off
|
off
|
|
0
|
00
|
00
|
1
|
00
|
00
|
00
|
|
0
|
DCO1
|
|
|
|
|
|
|
|
|
DCO2
|
|
|
|
|
|
|
|
|
WAVE
|
FORM
|
|
|
|
|
|
|
|
WAVE
|
FORM
|
|
|
|
|
|
|
|
first
|
second
|
|
|
|
|
|
|
|
first
|
second
|
|
|
|
|
|
|
|
2
|
0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
.............................................................
Step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Rate
|
50
|
|
|
|
|
|
|
|
Rate
|
|
|
|
|
|
|
|
|
Level
|
00
|
|
|
|
|
|
|
|
Level
|
|
|
|
|
|
|
|
|
Sust/End
|
end
|
|
|
|
|
|
|
|
Sus/End
|
|
|
|
|
|
|
|
|
//DCW 1..............................................................................................DCW
2
//Key Follow: 0...................................................................................Key Follow:
Step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Rate
|
70
|
00
|
|
|
|
|
|
|
Rate
|
|
|
|
|
|
|
|
|
Level
|
30
|
00
|
|
|
|
|
|
|
Level
|
|
|
|
|
|
|
|
|
Sust/End
|
sus
|
end
|
|
|
|
|
|
|
Sus/End
|
|
|
|
|
|
|
|
|
//DCA 1............................................................................................DCA
2
//Key Follow: 0................................................................................Key Follow:
Step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Step
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
Rate
|
70
|
00
|
|
|
|
|
|
|
Rate
|
|
|
|
|
|
|
|
|
Level
|
20
|
00
|
|
|
|
|
|
|
Level
|
|
|
|
|
|
|
|
|
Sus/End
|
sus
|
end
|
|
|
|
|
|
|
Sus/Emd
|
|
|
|
|
|
|
|
|
-o-o-o-o-o-o-o-o-o-o-o-o-
//Flute 8' &
Tierce 13/5' with
tremulant
///
|
MODU
|
LATION |
< |
DE
|
TUNE |
>
|
< |
VIB
|
RATO |
>
|
OC
|
TAVE |
line select
|
ring
|
noise
|
+/-
|
octave
|
note
|
fine
|
wave
|
delay
|
rate
|
depth
|
\++/- |
range
|
1 + 2
|
off
|
off
|
+
|
2
|
07
|
00
|
1
|
00
|
53
|
03
|
/ |
0
|
DCO1
|
|
|
|
|
|
|
|
|
DCO2
|
|
|
|
|
|
|
|
|
WAVE
|
FORM
|
|
|
|
|
|
|
|
WAVE
|
FORM
|
|
|
|
|
|
|
|
first
|
second.
|
|
|
|
|
|
|
|
first
|
second.
|
|
|
|
|
|
|
|
2
|
2
|
|
|
|
|
|
|
|
2
|
2
|
|
|
|
|
|
|
|
...........................................................................//////
Step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Rate
|
50
|
|
|
|
|
|
|
|
Rate
|
50
|
|
|
|
|
|
|
|
Level
|
00
|
|
|
|
|
|
|
|
Level
|
00
|
|
|
|
|
|
|
|
sus/end
|
end
|
|
|
|
|
|
|
|
sus/end
|
end
|
|
|
|
|
|
|
|
//DCW 1.........................................................................................DCW
2
//Key Follow: 0..............................................................................Key Follow: 0
Step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Rate
|
73
|
53
|
50
|
|
|
|
|
|
Rate
|
73
|
53
|
50
|
|
|
|
|
|
Level
|
99
|
85
|
00
|
|
|
|
|
|
Level
|
99
|
85
|
00
|
|
|
|
|
|
sus/end
|
|
sus
|
end
|
|
|
|
|
|
sus/end
|
|
sus
|
end
|
|
|
|
|
|
///DCA 1...............................................................................................DCA
2
///Key Follow: 0...................................................................................Key Follow: 0
Step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
Rate
|
70
|
60
|
|
|
|
|
|
|
Rate
|
70
|
60
|
|
|
|
|
|
|
Level
|
06
|
00
|
|
|
|
|
|
|
Level
|
25
|
00
|
|
|
|
|
|
|
sus/end
|
sus
|
end
|
|
|
|
|
|
|
sus/end
|
sus
|
end
|
|
|
|
|
|
|
-o-o-o-o-o-o-o-o-o-o-o-o-
//Orchestral
Oboe 8'
|
MODU
|
LATION |
< |
DET
|
UNE |
>
|
< |
VIB
|
RATO |
>
|
OCT
|
AVE |
Line Select
|
ring
|
noise
|
+/-
|
octave
|
note
|
fine
|
wave
|
delay
|
rate
|
depth
|
+/-
|
range |
1
|
off
|
off
|
+
|
0
|
00
|
00
|
1
|
00
|
53
|
03
|
+
|
1
|
//
DCO1
|
|
|
|
|
|
|
|
|
DCO2
|
|
|
|
|
|
|
|
/ |
WAVE
|
FORM
|
|
|
|
|
|
|
|
WAVE
|
FORM
|
|
|
|
|
|
|
|
first
|
second
|
|
|
|
|
|
|
|
first
|
second
|
|
|
|
|
|
|
|
3
|
4
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
///
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
rate
|
99
|
58
|
00
|
/
|
/
|
/
|
/
|
/
|
rate
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
level
|
00
|
00
|
00
|
/
|
/
|
/
|
/
|
//
|
level
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
sus/end
|
***
|
sus
|
end
|
/
|
/
|
/
|
/
|
/
|
sus/end
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
///
.. DCW1......................................................................................,..............DCW2
//Key
Follow: 9............................................................................,............Key Follow:
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
rate
|
74
|
00
|
/
|
/
|
/
|
/
|
/
|
/
|
rate
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
level
|
99
|
00
|
/
|
/
|
/
|
/
|
/
|
/
|
level
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
sus/end
|
***
|
end
|
/
|
/
|
/
|
/
|
/
|
//
|
sus/end
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
/
|
/////
//DCA1..........................................................................................,,............DCA2
//Key
Follow: 0..............................................................................,,..........Key Follow:
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
rate
|
70
|
60
|
|
|
|
|
|
|
rate
|
|
|
|
|
|
|
|
|
level
|
20
|
00
|
|
|
|
|
|
|
level
|
|
|
|
|
|
|
|
|
sus/end
|
sus
|
end
|
|
|
|
|
|
|
sus/end
|
|
|
|
|
|
|
|
|
-o-o-o-o-o-o-o-o-o-o-o-o-o-
//Tuba Mirabilis
8'
|
MODU
|
LATION |
< |
DET
|
UNE |
>
|
< |
VIB
|
RATO |
>
|
OCT
|
AVE |
Line Select
|
ring
|
noise
|
+/-
|
octave
|
note
|
fine
|
wave
|
delay
|
rate
|
depth
|
+/-
|
range
|
1 + 2
|
off
|
off
|
+
|
0
|
00
|
00
|
1
|
00
|
00
|
00
|
//
|
00
|
////////////////////
DCO1
|
|
|
|
|
|
|
|
|
DCO2
|
|
|
|
|
|
|
|
/ |
WAVE
|
FORM
|
|
|
|
|
|
|
|
WAVE
|
FORM
|
|
|
|
|
|
|
|
first
|
second |
|
|
|
|
|
|
|
first
|
second
|
|
|
|
|
|
|
|
3
|
0
|
|
|
|
|
|
|
|
3
|
0
|
|
|
|
|
|
|
|
//
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
step
|
1
|
2
|
3
|
4 |
5
|
6
|
7
|
8
|
rate
|
50
|
/ |
/ |
/ |
/ |
/ |
/ |
/ |
rate
|
50
|
/ |
/ |
/ |
/ |
/ |
/ |
/ |
level
|
00
|
/ |
/ |
/ |
/ |
/ |
/ |
/ |
level
|
00
|
/ |
/ |
/ |
/ |
/ |
/ |
/
|
sus/end
|
end
|
|
|
|
|
|
|
/ |
sus/end
|
end
|
|
|
|
|
|
|
|
///
//DCW1..............................................................................................DCW2
//Key Follow:
4.................................................................................Key Follow:
4
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
rate
|
73
|
53
|
50
|
|
|
|
|
|
rate
|
73
|
53
|
50
|
|
|
|
|
|
level
|
80
|
90
|
00
|
|
|
|
|
|
level
|
80
|
90
|
00
|
|
|
|
|
|
sus/end
|
***
|
sus
|
end
|
|
|
|
|
|
sus/end
|
*** |
sus
|
end
|
/ |
/ |
/ |
/ |
/ |
///
//DCA1.................................................................................................DCA2
//Key Follow:
3
..................................................................................Key Follow:
3
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
rate
|
70
|
60
|
|
|
|
|
|
|
rate
|
70
|
60
|
|
|
|
|
|
|
level
|
99
|
00
|
|
|
|
|
|
|
level
|
70
|
00
|
|
|
|
|
|
|
sus/end
|
sus
|
end
|
|
|
|
|
|
|
sus/end
|
sus
|
end
|
|
|
|
|
|
|
-o-o-o-o-o-o-o-o-o-o-o-o-
Clarinet 8' &
Tierce 13/5'
//
// |
MODU
|
LATION |
< |
DET
|
UNE |
>
|
< |
VIB
|
RATO |
>
|
OCT
|
AVE |
Line Select
|
ring
|
noise
|
+/-
|
octave
|
note
|
fine
|
wave
|
delay
|
rate
|
depth
|
+/-
|
range
|
1 + 2
|
off
|
off
|
+
|
2
|
07
|
00
|
1
|
00
|
53
|
03
|
//
|
0
|
//
DCO1
|
|
|
|
|
|
|
|
|
DCO2
|
|
|
|
|
|
|
|
|
WAVE
|
FORM
|
|
|
|
|
|
|
/
|
WAVE
|
FORM
|
|
|
|
|
|
|
|
first
|
second
|
|
|
|
|
|
|
/
|
first
|
second
|
|
|
|
|
|
|
|
2
|
0
|
|
|
|
|
|
|
|
2
|
2
|
|
|
|
|
|
|
|
//
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
rate
|
99
|
/ |
/ |
/ |
/ |
/ |
/ |
/ |
rate
|
50
|
/ |
/ |
/ |
/ |
/ |
/ |
/ |
level
|
00
|
/ |
/ |
/ |
/ |
/ |
/ |
/ |
level
|
00
|
/ |
/ |
/ |
/ |
/ |
/ |
/ |
sus/end
|
end
|
|
|
|
|
|
|
/
|
sus/end
|
end
|
|
|
|
|
|
|
|
////
DCW 1.........................................................................................DCW2
//Key Follow: 0...............................................................................Key Follow 0
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
rate
|
99
|
00
|
/ |
/ |
/ |
/ |
/ |
/ |
rate
|
73
|
53
|
50
|
/ |
/ |
/ |
/ |
/ |
follow
|
99
|
00
|
/ |
/ |
/ |
/ |
/ |
/
|
follow
|
99
|
85
|
00
|
/ |
/ |
/ |
/ |
/ |
sus/end
|
|
end
|
|
|
|
|
|
|
sus/end
|
/
|
sus
|
end
|
|
|
|
|
|
///DA1.................................................................................................DA2
///Key Follow: 0.................................................................................Key Follow: 0
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
step
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
rate
|
70
|
60
|
|
|
|
|
|
|
rate
|
70
|
60
|
|
|
|
|
|
|
follow
|
20
|
00
|
|
|
|
|
|
|
follow
|
20
|
00
|
|
|
|
|
|
|
sus/end
|
sus
|
end
|
|
|
|
|
|
|
sus/end
|
sus
|
end
|
|
|
|
|
|
|
-o-o-o-o-o-o-o-o-o-o-o-o-
How may one change a voice
with minimum of effort? To
change from a penetrating Tuba, all
that is required is to remove all
the DCO2, DCW2 & DCA2 settings
and reduce the DCA1 level from 90 to
60 thereby finding a far less
penetrating and more pleasant
trumpet e.g. to use in Handel's "The
trumpet shall sound".
At DCA Step 1, the rate
= attack / level = volume
DCA Step 2, the rate =
reverberation
When building a reed
voice -
DCW Step 2, rate
- the lower the integer, the more
reediness in the attack.
DCW Step 2, level
- the higher the integer the more
sustained the reedy edge to the
tone.
If one wishes no vibrato
on a combination which has vib.
inbuilt, simply flick the vib.
button.
To
return to the Casio
CZ1000. An opening was
made in the organ console
immediately above the Swell
manual, the resulting aperture
housing the synth keyboard.
The removed panel could be
replaced when the keyboard was not
in use and fastened in situ by two
clips. A cable ran
from the synth up the nearest
pillar to the console, along the
top of the rood screen and into
the North chamber - all very well
hidden. The 200 watt
amplifier was positioned in the
centre, not the forefront, of the
organ chamber and connected to a
nearby socket.
ll
In
this way I now had a third manual
or, with the quick changing
buttons of the synth, really a
third and fourth
manual. Pedal sounds
could be produced but these had to
be played by the left hand
duplicated by the organ pedals
while the right hand coped with as
many notes as was possible.
The use of the pedal tones,
therefore, had to be quite
selective, e.g. the final line or
lines of a hymn. The
occasional chorale prelude, if of
sufficiently sparse texture in the
manual parts, allowed this also to
be a possibility e.g. the chorale
prelude "Vom Himmel hoch, da komm'
ich her" by Bach.
Here
now are the combinations that
emitted from the
synthesizer. I was
asked to do a demonstration
recital to the local Society of
Organists in Tayside and the
members had to confess at the end
of the evening that they felt that
they had been listening entirely
to pipework during the
demonstration. One
observation - with all pipework
blowing, the synthesized Tuba
Mirabilis could scythe through the
welter of sound like a great
well-honed sword!
|