DUO-ART ORGAN TRACKER BAR
HOLE ASSIGNMENTS

Paper width = 15 1/4 inches,  Holes = two staggered rows spaced 6/inch each
numbered from left to right

          Bottom Row                                                                        Top Row
#1    Great Tremolo                    
#3    Tonal is Sforzando (puts on all stops)                              #2  Echo on Swell (upper holes)
#5    Great plays Harp                                                           #4  Swell plays Chimes
#7    Great extension to 61 notes **                                        #6  Swell Tremolo
#9     Notes 1-13 play pedal notes13-25 ** (see note)                #8  Swell plays Harp
#11   Notes 1-8 play pedal notes 25-32 ** (see note)                #10 Swell Trumpet
#13   Great shades 1st stage open                                           #12 Swell Oboe
#15   2nd stage                                                                     #14 Swell Vox Humana
#17   3rd stage                                                                     #16  Swell Diapason
#19   4th stage                                                                      #18  Swell 16' Bourdon
#21   5th stage                                                                      #20  Swell 4' Flute
#23   6th stage                                                                      #22  Swell 8' Flute P
#25   Pedal 16' Bassoon                                                         #24  Swell String F Celeste
#27   Pedal 16' String  F                                                        #26  Swell String F
#29   Pedal 16' Bourdon F                                                     #28  Swell String MF
#31   Pedal 16' Bourdon P                                                     #30  Swell String P
#33   Great note #1                                                               #32  Swell String PP
#35   Great note #2                                                               #34  Swell note #1
=========================================================
#147  Great note #58                                                             #148 Swell note #58
#149  Great String PP                                                            #150 Swell shades 1st stage
#151  Great String P                                                              #152  2nd stage
#153  Great String F                                                              #154 3rd stage
#155  Great Flute P                                                                #156 4th stage
#157  Great Flute F                                                                #158 5th stage
#159  Great 4' Flute                                                               #160  6th stage
#161  Great Diapason                                                             #162  Swell extension to 61 **
#163  Great 2' Piccolo                                                            #164  L.C.W. Not known
#165  Great Clarinet                                                               #166  L.C.W. Not known
#167  Great Trumpet                                                              #168  Chimes soft
#169  Chimes on Great                                                           #170  Cancel all jacks & reroll **
#171  Echo on Great                                                               #172 Ventil On**, first hole on roll
#173  Reverse                                                                        #174  Normal
#175  Various  (Swell string ppp)                                             #176  Pedal to Upper holes    

All control holes toggle on-off through the jackbox except those marked with ** two asterisks

Note: The pedal octave switching is confusing and is the weakest part of the Duo Art scheme.  Because the pedal notes are always extracted from holes 1-13 of one  row of holes, it is impossible to play octaves in the pedal stops, except for the "C's".  The roll editors were confused as errors can be found  in coding C# second octave on several rolls.  In essence, the Great to Pedal or Swell to Pedal is always drawn, which sometimes leads to problems.  The system causes errant pedal notes when manual notes fall into the pedal range (1-13) when those notes were never intended to play in the pedal.

#7    Early Aeolian reed organs had 58 note keyboards, the rolls were made to match. To take advantage of the full 61 note pipe organ keyboard compass, Aeolian added a three-note transposer. Hole #7  causes notes 47, 48, and 49 to play one octave higher, at  #59-60-61. This varies with installation.

#9    No toggle - function on only while hole #9 remains open

#11  No toggle - function on only while hole #11 remains open

#162  Swell extension to 61 notes. Like #7.

#170  Reroll.

#172 After the tiny center tracking perforations at the start of the roll, but before any of the stops and shades are set up, #172 gets a slot perf.  This puts suction to all the control pouches and the note pouches so they can operate.

#173 & #174 Only meaningful on earliest rolls and installations, parallels 116 manual to holes coupler

#175 Various functions that appear to be installation specific  Senses beginning of roll or Swell string ppp

#176 Switches Pedal input (notes 1-13) from lower holes to upper holes.

#164 and 166 are labeled L.C.W.  No one seems to know what LCW means. No jacks  toggles for these holes.

COMPLETE DUO-ART STOP SPECIFICATION

GREAT

Diapason
Flute F
Flute P
String F
String P
String PP
4' Flute
2' Piccolo
Trumpet
Clarinet
Tremolo
Harp
Chimes

SWELL

16' Bourdon
Diapason
8' Flute
4' Flute
String F
String F Celeste
String MF
String P
String PP
Trumpet
Oboe
Vox Humana
Tremolo
Harp

PEDAL

16' Bourdon F    
16' Bourdon P (Swell)    
16' String
16' Bassoon

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