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CHAPTER 9
The keyboard versions of the Virus

Switch and control pedals are available in your
local music store. The only suitable control ped-
als are the typical synthesizer control pedals
with a single three pole plug (similar to a head-
phone plug). What does not work are volume or
Wahwah pedals that guitarists use. In addition,
some manufacturers’ control pedals have a dif-
ferent polarity, so that the pedals do not func-
tion correctly with the VIRUS kc / indigo (no
control effect or erratic control). We suggest
you try out a control pedal before you buy it.
Some manufacturers’ switch pedals also have a
different polarity. The VIRUS kc / indigo howev-
er recognizes this polarity when you switch it on
or whenever you hit the Panic-Reset. Double-
click both Transpose-buttons

(also commonly referred to as “Channel Pres-
sure”), is a control signal that is generated by
hitting a key, and whilst holding it, pressing it a
bit harder (not too hard, lest the function be
changed to “repair required”) The harder the
keys are pressed, the stronger the control signal
becomes; excellent for modulating any parame-
ters while playing the VIRUS’ via its modulation
matrix (“ASSIGN”). The sensitivity of the After-
touch-function is set with the parameter KEY-
BOARD PRESSURE Sensitivity (Off, 1...127).
Normal sensitivity is around 64, this allows you
to exploit the entire aftertouch range. If you are
using the keyboard to record MIDI data with a
sequencer, it might make sense to turn the af-
tertouch-function off, (Sensitivity=Off), to avoid
recording undesired MIDI data.

The VIRUS’ keyboard can be transposed in
semitones. Mind you the transposing takes
place in the transmitter (the keyboard) and not
in the “receiver” (the sound generator). The
transpose parameter is called KEYBOARD

Transpose (-64...+63). The KEYBOARD Trans-
p o s e   c a n   b e   s w i t c h e d   i n   o c t a v e s   b y   t h e
TRANSPOSE buttons on the user panel as well.
By parameter KEYB TRANSPOSE Button you
can choose if the TRANSPOSE buttons will
switch the transpose of the SINGLE program
(receiver position) or the Keyboard (transmitter
position).

 

You will be especially interested in the VIRUS’
Keyboard-Mode-Function if you intend to use
the VIRUS kc / indigo as a Masterkeyboard in
order to manage further connected MIDI sound
generators. To explain it, we have to take a
closer look: If you use the VIRUS in MULTI
MODE, you can play several parts on different
MIDI channels. You can also assign several
parts to the same MIDI channel, but set so that
one part is only played on the lower end of the
keyboard, and a different one played on the
higher end.

This allows for a variety of split and layer varia-
tions. The lower half of the keyboard plays a
bass, the higher end plays a pad sound that is
mixed with brass - and so on. The parts are as-
signed to the keyboard areas in the VIRUS’
Multi, where they are also saved - which means
in the sound generator or in other words the re-
ceiver as mentioned in our “Three in One”-defi-
nition). The keyboard simply sends out the data,
and the various notes are distributed to the cor-
relating parts in the sound generator.

With the help of the Keyboard-Mode-Parame-
ter, we can turn the entire thing around. It can
relocate the Multi’s note assignment back to the
transmitter side, i.e. the keyboard. The notes