Sample Specification for Music Book
By Robbie Rhodes
Bob Ebert asked about the tracker bar channel assignments for WurliTzer band organs (digest 950826).
I recently compiled full specifications for several book music organs which include everything that I need to
(1) arrange music for the machine, and
(2) print a template of the music (using Jody's template program)
suitable for punching. This sample Specification file is quite representative of a Dutch street organ machine, since the builder, Frederic Keller, is a disciple of the German/Dutch master, Carl Frei. One of Keller's new organs, named "Puppchen", now performs outside the Children's Museum in Hamburg, Germany.
A complete description of a roll-operated band organ would look something like this book-music Specification.
file: Keller47.txt
revised: 94.12.13, re pneumatic reader.
COMPILER: Robbie Rhodes, December 1994
DATA SOURCE: Product Specification, Orgelbau Keller, 1992,
and correspondence.
BUILDER: Frederic Keller, 91462 Dachsberg-Finsterlingen, Germany
STYLE: Medium size concert organ with 47-keys
POWER: Hand-cranked or electric motor
SIZE:
Case: 175 cm high, 140 cm wide, 75 cm deep
Additional side panels or consoles for drums.
Total quantity of pipes: 176
Largest pipe circa 173 cm.
PLAYER SYSTEM:
speed of medium: 5.5 cm per second
reader: pneumatic, rectangular hole, hole height = 1.20 mm.
medium: punched cardboard book, round hole diameter = 0.70 mm.
width of medium: 32.43 cm (51-key format)
distance, bass edge to center of first key channel: 0.34874 cm
channel spacing: 0.34874 cm per key (43 keys in 15 cm)
total quantity of active channels: 47
divisions and quantity of channels in division:
bass section, 8 keys
accompaniment section, 10 keys
melody section, 20 keys
counter-melody section, 0 keys
percussion section, 4 keys
controls section, 5 keys
CHANNEL ASSIGNMENT - channel (key) number, assignment
channel: 1 2 3 4 5 6 7 8
BASS: G . A B H C . D . E F .
channel: 9 10 11 12 13 14 15 16 17 18
ACCOMP G . A B H C C# D . E F F#
channel: 19 20 21 22 23 24 25 26 27 28 29 30
MELODY G G# A B H C C# D D# E F F#
channel: 31 32 33 34 35 36 37 38
MELODY G G# A B H C . D . E
channel: PERC. & CONTROLS:
39 J kapellmeister (no sound)
40 K snare drum, beater #1
41 L snare drum, beater #2
42 M bass drum
43 N Vio Violin = open violin double + single gedeckt
44 P Bor Bourdon = gedeckt double with one rank detuned
45 R Car Carillon = open octave + single gedeckt
46 S ViC Violin Celeste = open triple with one rank detuned
47 T Dec Declenche (cancel) = muted + gedeckt solo
(fundamental registration)
PITCH TRANSPOSED: "Middle C" will sound as E-flat above (as in Gavioli)
DESCRIPTION OF RANKS, percussion and controls/stops:
N.B.: German nomenclature "A-B-H-C" used throughout.
division name, quantity of keys & total quantity of pipes in division
quantity of pipes in rank, range of rank
rank name, range [..] ("non-transposed"), true pitch of
longest pipe, air column length
name, true sound pitch of longest pipe in the rank, air column length.
BASS 8 keys [G..F]
16 pipes--
8 gedeckt contra [F..E] G#0 = 51.9 Hz (164.2 cm - stopped)
8 gedeckt octave [F..E] G#1 = 103.8 Hz ( 82.1 cm - stopped)
ACCOMP 10 keys [G..F#]
40 pipes--
10 gedeckt [G..F#] B2 = 233 Hz ( 36.6 cm - stopped)
10 gedeckt, detuned [G..F#] B2 = 233 Hz ~
10 open cello [G..F#] B2 = 233 Hz ( 73.3 cm - open)
10 open octave [G..F#] B3 = 466 Hz ( 36.6 cm - open)
MELODY 20 keys [G..E]
120 pipes--
8 gedeckt [G..E] B3 = 466 Hz ( 18.3 cm - stopped)
8 gedeckt, detuned [G..E] B3 = 466 Hz
16 open violin, double [G..E] B3 = 466 Hz ( 36.6 cm - open)
8 open violin, detuned [G..E] B3 = 466 Hz ~
8 open octave (single) [G..E] B4 = 933 Hz ( 18.3 cm - open)
COUNTER-MELODY 0 keys
PERCUSSION 4 keys
kapellmeister (no sound)
snare drum, beater #1
snare drum, beater #2
bass drum
CONTROLS & STOPS 5 keys
Control precedence:
Memory is a slide valve with a pneumatic at each end (as in Mortier).
Stop "on" always takes precedence over Declenche (cancel/release).
Vio Violin = open violin double + single gedeckt
Bor Bourdon = gedeckt double with one rank detuned
Car Carillon = open octave + single gedeckt
ViC Violin Celeste = open triple with one rank detuned
Dec Declenche (cancel/release) = muted + gedeckt solo
(fundamental registration)
TRUTH TABLE of STOPS - across: names of stops; down: registers and ranks
Vio Bor Car ViC Dec
BASS voices
gedeckt contra . . . . x x x x x
gedeckt octave . . . . . . . . x . . . .
ACCOMPANIMENT voices:
gedeckt . . . . x x x x x
gedeckt, detuned . . . . . x
open cello ??
open octave . . . . . . . . . . x
MELODY voices
gedeckt . . . . x x x x x
gedeckt, detuned . . . . . x . . . . . .
open violin, double x . . . . . x
open violin, detuned . . . . . . . x
open octave (single) . . . . . x
TIME DELAYS
Bass drum: delay = 85 millisecond (msec) from key "on",
duration 106 msec typ.
Snare drum: delay = 37 msec from key "off",
charging duration 50 msec typical.
Reiteration of a [solo] snare beater is possible with
16th-notes up to MM = 172 if the medium speed is suitably fast.
At speed 5.5 cm per second (pneumatic reader system) then
MM=150 is fastest possible with 16th-notes.
- end -
-- Robbie Rhodes 27 August 1995 |
(Message sent Mon 28 Aug 1995, 06:43:48 GMT, from time zone GMT-0700.) |
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