HOLY TRINITY CHURCH, SLOANE SQUARE

Specification of the Organ

The organ was built by J.W.Walker & Sons in 1891, and was rebuilt by them in 1934. It was damaged in the second World War and was again rebuilt
by Walker in 1967.
The rebuilding of the organ by Harrison & Harrison is based on the 1891 pipework, with additions as shown. The structure and mechanism will be completely new.
The organ occupies a chamber on the north side of the chancel.


 PEDAL ORGAN



GREAT ORGAN









1
 Double Open Diapason
 (wood, from 2)
 32
31
 Double Open Diapason
 (1-12 new)
 16
2
 Open Diapason
 (wood)
 16
32
 Open Diapason I
8
3
 Open Diapason (metal)
 16
33
 Open Diapason II
8
4
 Violone (from 31)
 16
34
 Viola
 (present Open III)
 8
5
 Salicional
 (from 18)
 16
35
 Wald Flute
8
6
 Sub Bass
16
36
 Octave
4
7
 Bourdon
 (from 45)
 16
*37
 FlûteHarmonique
4
*8
 Octave Wood
(from 2)
 8
38
 Twelfth
22/3
*9
 Principal
8
39
 Fifteenth
2
10
 Bass Flute
 (from 6)
 8
40
 Mixture
III
*11
 Super Octave
4
*41
 Sharp Mixture
III
*12
 Mixture
 17.19.22.26.29
 V
42
 Double Trumpet
16
13
 Double Ophicleide
 (from 14)
 32
43
 Trumpet
8
14
 Ophicleide
16
44
 Clarion
4
15
 Trombone
 (from 42)
 16

Great Reeds on Choir
*16
 Fagotto
 (from 56)
 16




17
 Clarion
 (from 14)
 8

SWELL ORGAN






45
 Double Stopped Diapason (1 - 12 new)
 16

CHOIR ORGAN


46
 Open Diapason
8

DIVISION 1 (enclosed)


47
 Stopped Diapason
8
18
 Contra Salicional
16
48
 Echo Gamba
8
19
 Lieblich Gedeckt
8
49
 Voix Céleste
(tenor c)
 8
*20
 Dulciana
8
50
 Principal
4
*21
 Vox Angelica
 (AA)
 8
*51
 Open Flute
 (wood)
 4
*22
 Stopped Flute
4
52
 Fifteenth
2
23
 Harmonic Gemshorn
2
53
 Mixture
IV
*24
 Cornet
 12.17
 II
*54
 Sharp Mixture
III

Tremulant       Octave       Choir I on Great

55
 Hautboy
8





Tremulant

DIVISION II (unenclosed)


*56
 Contra Fagotto
16
25
 Open Diapason
8
57
 Cornopean
8
*26
 Stopped Diapason
 (wood)
 8
58
 Clarion
4
27
 Gemshorn
4

Octave       Sub Octave       Unison Off
*28
 Fifteenth
2




*29
 Mixture
 19.22/15.19.22
 II-III

SOLO ORGAN


Choir II on Great


(59 - 66 enclosed)

*30
 Tuba Mirabilis
 (from 68)
 8
*59
 FlûteHarmonique
8





*60
 Viola da Gamba
8

ACCESSORIES


*61
 Viola Céleste
 (AA)
 8

Eight general pistons and general cancel

*62
 Concert Flute
4

Eight foot pistons to the Pedal Organ

*63
 Piccolo
2

Eight pistons to the Choir Organ

*64
 Vox Humana
8

Eight pistons to the Great Organ

*65
 Cor Anglais
8

Eight pistons to the Swell Organ


66
 Corno di Bassetto
8

  (duplicated by foot pistons)



Tremulant

Four pistons to the Solo Organ


67
 Fanfare Trumpet
 (1 - 12 new)
 8

Four pistons drawing stops 65 - 68

68
 Tuba Mirabilis
 8

Reversible pistons to all inter-departmental couplers
Octave       Sub Octave       Unison Off

Reversible foot pistons to Great to Pedal,


* new pipes


                 Swell to Pedal, Solo to Great

COUPLERS


Stepper, operating general pistons in sequence


Choir to Pedal
 Great to Choir

256 general and 8 divisional piston memory levels

Great to Pedal
 Swell to Choir






Swell to Pedal
 Solo to Choir






Solo to Pedal
 Choir to Great




Solo to Swell
 Swell to Great






Solo to Great

 




Great and Pedal Combinations coupled






Generals on Swell foot pistons


HARRISON & HARRISON
2011-12

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