Korg prologue Owner's Manual page 21

Voice mode list
Voice mode
POLY Voice mode featuring 16
voices (for the prologue-16) or
8 voices (for the prologue-8),
for playing as a poly synth.
MONO Operate as a mono synth with
sub-oscillator.
UNISON All voices (16 voices on the
prologue-16, 8 voices on the
prologue-8) will sound in uni-
son (at the same time), operat-
ing as a mono synth.
CHORD Play as a chord.
Action
21
VOICE MODE DEPTH knob effect
[POLY, DUO 0...1023]
Turn the knob to the right to switch to
DUO mode, which stacks two voices when
playing a key. Turning the knob to the
right will increase the sound of the stacked
voice, and deepen the detune effect.
[Sub 0...1023]
Turning the knob to the right will assign
voices 2 and 3 as a sub-oscillator one oc-
tave lower, and turning the knob to the
right once more will assign voice 4 as a
sub-oscillator two octaves lower.
[Detune 0C...50C]
Turning the knob to the right will increase
the detuning effect.
[5th, sus2, m, Maj, sus4, m7, 7, 7sus4, Maj7, aug,
dim, m7 ♭ 5, mMaj7, Maj7 ♭ 5]
Selects the chord to play.