Technical data
The
WEAK
and
STRONG
positions
of
the
FILTER
MOD
BY
OSC
B
switch
connect
the
entire
output
of
OSCILLATOR
B
(DOUBLING
included)
to
the
control
input
of
the
FILTER
section.
OSCILLATOR
B
section
acts
as
a
controller,
rapidly
modulating
filter
cutoff
frequency.
When
OSCILLATOR
B
is
the
sound
source,
its
own
signal
is
modulated
by
itself,
creating
a
more
complex
sound.
You
might
experiment
with
use
of
the
FILTER
MOD
BY
OSC
B
switch
with
any
of
the
sounds
you
create.
When
you
make
clangorous
sounds
using
the
FILTER
in
TONE
mode
(see
Exercise
5),
OSCILLATOR
B
is
used
only
as
a
controller
(OSCILLATORS
switch
to
OFF
position).
But
to
maintain
consistency
of
timbre
over
the
entire
keyboard,
the
OSCILLATOR
B
must
follow
the
keyboard
to
maintain
the
same
frequency
ratio
between
the
OSCILLATOR
B
and
FILTER
sections.
Even
though
the
OSCILLATORS
switch
is
placed
OFF
and
the
OSCILLATOR
B
section
is
not
heard,
it
is
still
under
keyboard
control.
PITCH
Ribbon
The
PITCH
ribbon
to
the
left
of
the
keyboard
is
an
important
performance
controller.
It
generates
a
signal
that
is
conneaed
to
the
(frequency)
control
input
of
the
oscillators.
The
PITCH
ribbon
bends
the
pitch
of
the
oscillators
only;
it
has
no
effect
on
the
NOISE
section,
or
the
FILTER
section,
even
when
in
TONE
mode.
The
PITCH
ribbon
is
a
resistance
element
protected
with
plastic-coated
mesh.
In
the
center
of
the
ribbon
is
a
dead
band,
marked
with
a
bump.
This
causes
no
bending
of
pitch,
and
provides
a
way
to
feel
the
"center"
of
the
pitch.
Pitch
is
bent
by
depressing
the
ribbon
and
moving
away
from
the
center
bump.
Oscillator
pitch
may
be
bent
up
or
down
with
a
similar
movement
on
the
ribbon.
On
release of
the
ribbon
at
any
point,
pitch
is
returned
to
"center,"
or
the
original
pitch
instantly.
The
PITCH
ribbon
is
a
most
important
development
that
allows
the
performer
to
achieve
the
subtlety
of
pitch
bending
associated
with
all
solo-line
musical
instruments—don't
ignore
its
use!
EXERCISE
17:
PITCH
RIBBON
AND
RIBBON
ROUTING
SWITCH
1.
Depress
and
hold
any key
with
your
right
hand.
2.
Place
the
"pad"
on
the
end
of
your
middle
finger
(left
hand)
directly
over
the
bump
on
the
PITCH
ribbon.
3.
Press
down
slightly
with
your
left
hand;
slide
alternately
above
and
below
the
bump
to
bend
pitch
away
from
the
note.
4.
Now,
run
your
finger
lightly
over
the
PITCH
ribbon;
notice
that
the
bump
can
be
"found"
without
causing
the
pitch
to
bend.
Learn
exactly
how
much
force
must
be
used
to
engage
the
ribbon
and
cause
a
pitch
bend.
5.
Bend
toward
the
note by
depressing
the
finger
above
(or
below)
the
center
bump,
and
then
move
toward
the
center
bump.
6.
"Tap
out"
trills
by
hitting
on
a
specific
interval
either
side of
the
center
bump.
The
Multimoog's
PITCH
ribbon
gives
you
tact;7e
feedback—you
can
feel
it.
It
also
gives
visual
and
spatial
feedback—like
the
trombonist's
slide,
or
the
violinist's
string.
Development
of
pitchbending
technique
is
critical
for
believable
solo
lines.
Continue:
7.
Perform
a
wide
bend
upward.
(Both
oscillators
will
bend).
8.
Place
the
RIBBON
ROUTING
switch
to
OFF.
Bend.
(There
will
be
no
bend.)
9.
Place
the
RIBBON
ROUTING
switch
to
the
OSC
A
position.
Bend.
Now,
only
OSCILLATOR
A
will
be
bent.
(END
EXERCISR