User Guide
23
English
With the exception of the Chromatic scale (see Scales, page 24), the top row of the synth 
keyboard contains notes one octave above those in the second row. The highest note of the 
lower octave (Pad 16) is the always the same as the lowest note of the higher octave (Pad 1). 
Thus to play the notes over two octaves in ascending order, start with Pads 9 to 16, then 1 to 8.
When Circuit is powered up and an empty or new Session selected, Middle C will normally be 
the lowest note of the two octave keyboard (Pad 9). It is possible to alter the keyboard ‘layout’ 
so that the bottom note is something other than C – see page 24. The synth has a total range 
of 12 octaves; you can access higher or lower pairs of octaves by using the Oct J and Oct 
K buttons 
13
. Note that at the highest and lowest octave settings, the ‘size’ of the keyboard is 
limited. 
Expanded Note View
To obtain a keyboard with a wider range, hold down Shift 
19
 and press Note 
6
; Note now 
illuminates white. This is called Expanded Note View, and removes the pattern display in the 
two lower rows of the grid, replacing it with keys for the next two lower octaves of the selected 
scale. 
Synth 1 Drum 1 Drum 2 Drum 3 Drum 4Synth 2Sidechain Sidechain
Synth keyboard
Synth 1 selected
Synth 1 Drum 1 Drum 2 Drum 3 Drum 4Synth 2Sidechain Sidechain
Synth keyboard
Synth 2 selected










