Specifications

AP-2, -3,-4, -6, & -8 18 Section IV
TRANSPOSER
Vast computer capability makes it possible to perform the sometimes difficult task of
transposing, while allowing the organist to play in the notated key. Operation of the Transposer
is controlled by the Transposer knob, found to the left side of the console (AP-2 through -4) or in
the Console Controller™ drawer (AP-6 and -8). Neutral (no transposition) position for the knob
is marked “N.” To shift the music to a higher key, move the knob counter-clockwise. The key
can be raised a maximum of five half-steps. To shift to a lower key, move the Transposer knob
clockwise from “N.” The key can be lowered a total of seven half-steps. A RED INDICATOR
LIGHT COMES ON WHENEVER THE TRANSPOSER KNOB IS MOVED FROM THE “N”
POSITION.
WHY TRANSPOSE?
1. Because the written range of a song will not always suit the vocal range of a particular
singer. By adjusting the transposer, the piece can be sung more comfortably and effectively.
2. Because music for some instruments is not written in the same key as organ music. A
trumpet or clarinet in B, for example, can read the same music as the organist, if the
Transposer knob is set two half-steps lower.
3. Because hymn singing can sometimes be improved by a more favorable key selection.
Hymn singing can also be enhanced by playing all but the final verse of a hymn in its
original key, followed by a short modulation to the key one half-step higher. After changing
the Transposer, the organist will then play the final verse in the original key, but it will sound
one half-step higher. If a hymn is already in a fairly high key, it may be preferable to play
the first few stanzas in the written key with the Transposer set down one half- or one whole-
step; then modulate up to the original key and return the Transposer to neutral for the final
stanza (again played in the written key).
SETTING CAPTURE SYSTEM PISTONS
AP-2, -3, and -4
Allen’s Lumitech™ capture system allows the organist to set five stop combinations on Pistons 1
through 5 in each of two memories on the AP-2, -3, & -4. If two organists play the organ, one
can use Memory A, the other Memory B. To use the second capture memory, press the Memory
B piston on the AP-2, or the rocker tablet on the AP-3 or -4.
AP-6 and -8
The AP-6 has four capture action memories. The AP-8 has six. These memories are accessible
in the Console Controller. See Console Controller™ and MIDI Guide, Version 22, Part Number
033-0098, for further information about selection of capture memories and setting pistons.
NOTE: The capture action is not fully operable until approximately six seconds after the organ
is turned on.