Rodgers 538 insignia, Owner'S Manual

Page: 38 / 72

Other functions
38
Rodgers 538/i548
Selecting a temperament
(1) Press
[QUICK¥MENU]
.
(2) Use the Select knob to select “Pipe Modeling”.
(3) Confirm your choice by pressing
[QUICK¥MENU]
.
This takes you to a lower level with several options.
(4) Choose “Temperament” with the Select knob.
(5) Confirm your choice by pressing
[QUICK¥MENU]
.
(The “Type” parameter is already selected. To return to
this parameter after setting “Key”, use the Select
knob.)
(6) Use the data entry wheel to select the desired tem-
perament.
See above for the possibilities. For all temperaments
(except “Equal”), you also need to specify in what key
you will be playing:
(7) Use the Select knob to choose the “Key” parameter.
(8) Use the data entry wheel to select the desired key.
The possibilities are: C, C#, D, D#, E, F, F#, G, G#, A,
A#, B.
(9) Save your settings if you wish to keep them.
See “Saving general settings” on p. 42, or proceed as
follows: Press and hold
[SET]
+
[0]
for a few seconds.
(10) Press and hold the
[ø¥EXIT]
piston to return to the
main page.
Note: When the organ is turned off, the temperament reverts
to “Equal”, the default setting. Also, the instrument can be
quickly returned to the “Equal” temperament by pressing
[0] +
[SET]
. This procedure also returns MIDI parameters to their fac-
tory settings.
Random tuning
One of the essential ingredients of a pipe organ
ensemble arises from the small amount of pitch
deviation in each pipe. No matter how carefully an
instrument is tuned, small changes in temperature or
humidity cause the pipes to drift slightly from their
original pitches. Reed pipes are especially prone to drift
in tuning because of cyclic temperature variations.
The “Random Tuning” feature causes random notes to
receive a small amount of detuning. The amount of
detuning is chosen at random for each note of each
voice. Some notes are not detuned at all. The number of
notes detuned and the maximum amount of detuning
are selected for each voice to mimic the behavior of an
equivalent pipe set. For instance, reeds exhibit more
pitch fluctuation than flutes. Because the detuning is
random, there is no degradation of the overall
temperament of the instrument and the amount of
detuning is no more than one would experience in a
recently tuned pipe instrument.
This detuning process happens each time the organ is
turned on. Once computed, the pitch of each note
remains constant. Thus, the tuning of the instrument is
a little different each time it is powered on, as it would
be with a pipe organ. The amount of random detuning
can be set as follows:
(1) Press
[QUICK¥MENU]
.
(2) Use the Select knob to select “Pipe Modeling”.
(3) Confirm your choice by pressing
[QUICK¥MENU]
.
This takes you to a lower level with several options.
(4) Select the “Random Tuning” parameter.
(5) Confirm your choice by pressing
[QUICK¥MENU]
.
(6) Rotate the data entry wheel to select the desired
value (–7~+8).
(7) Save your setting if you wish to keep it.
See “Saving general settings” on p. 42, or proceed as
follows: Press and hold
[SET]
+
[0]
for a few seconds.
Note: In order to hear this new detune setting, you need to
save it, and switch the 538/i548 off and back on again.
(8) When finished, press and hold the
[ø¥EXIT]
piston to
return to the main page.
Rodgers 538_i548.book Page 38 Monday, February 4, 2008 9:02 AM