Operation Manual

C
do
F
fa
G
sol
A
la
B
si
C
do
D
re
E
mi
B
si
AHLBORN Classical Organs
English Page 31
PRAELUDIUM III - PRAELUDIUM IV/E - User's Manual
CONTROLS BUTTON FUNCTIONS (Finishing)
This is called "short octave". The music originally written for these organs is difficult or impossible to execute on
keyboards with normal extension. This function may also be useful to the organist to study musical pieces to be
performed on antique organs with "short octave". To insert this function, set the control on the YES position.
TRACKER TOUCH (Mechanical action)
1
REMINDER !
To avoid errors or confusion, this control should be set on the normal NO position when the function is not
required. Remember that when set on the YES position (the short octave is ON) the first 4 notes, from DO to
RE#, are NOT FUNCTIONING.
As indicated in the foreword, this organ offers pipe organ touch with mechanic transmission, working on the
sound start and release.
To insert this function, set the control to ON. When in the OFF position, the organ will return to the normal
function.
SHORT OCTAVE (The first lower octave set as in some antique organs)
2
In many European countries, but especially in Italy and Spain, antique organs from the 16th to the 18th century,
frequently had the first octave of the keyboard and pedalboard, following this sequence: