O S C I L L AT O R S
Practicing this simple procedure will create a
harmonic tuning with Oscillator 1 as the low
note and Oscillator 2 as the high note.
Set the MIX knob to only hear Oscillator 1.
Turn the Filter knob clockwise, to cancel
self-oscillations that can interfere with
clearly hearing the pitch.
Using another instrument in your
composition as a reference, play the root
note of your composition or song, or ask
your band mate to play the root note in a
low octave.
Adjust OSC 1 so it is in tune (in unison)
with the root note.
Now, set the MIX knob straight up, so you
hear an equal blend of OSC 1 and 2.
Adjust OSC 2 to a higher pitch than OSC 1.
Listen carefully while fine tuning OSC 2 to
create a pleasant harmonic interval.
Now the synthesizer is set up for a drone tone
that matches the key of the composition or
song you’re performing.
OSC 1 and OSC 2 knobs
Tuning Tip: Harmonic Intervals
Manual tuning adjustment for the oscillators
MIX control
Blends the oscillators together
OSC 1 and OSC 2 switches
The toggle switches choose the waveform
for each oscillator
5
20 Hz
360 Hz
OSC 1
50% Mix
OSC 2
Square
Triangle
The highest pitch, 360 Hz, is near
the F above middle C
The oscillators do not have CV input
When
Audio I
n is patched, the oscillators are
muted and the MIX control is deactivated.
190 Hz
Grendel Drone Commander
Classic Pedal
