Arturia KeyStep 37 MIDI Keyboard Controller and Sequencer - Manual (Page 18)

1.6.6. Shift button
The Shift button allows access to secondary functions such as Chord mode, access to the
CC banks and the MIDI channel settings for the keyboard. It also can be used to modify the
feel of the sequence 'on the fly'? by changing the Swing and Gate time settings. All of these
features involve holding the Shift button and pressing another button or a key.
For a complete chart of Shift functions, see section 3.4 [p.40] .
1.6.7. Oct -/+, Transpose, Kbd Play
These buttons are a quick way to shift the keyboard in octave increments. The further you
shift from the center, the faster they flash. Maximum transposition is +/- 4 octaves. Press
both buttons at the same time to reset the keyboard to its center octave.
When pressing Oct+ or Oct- while an arpeggio is running, notes you add will be added in
higher or lower octaves depending on the Oct button you pressed.
The blue letters under the buttons tell you that the Shift and Oct-/Oct+ buttons are used
together to change the way the keyboard behaves while a sequence is running:
Shift + Oct Minus -> Transpose mode : the keys will transpose the sequence while it is running.
Shift + Oct Plus -> Kbd Play mode : The keys are able to play independently in addition to the
part the sequencer is playing. It is possible to specify a separate MIDI channel for Kbd Play
mode.

Transpose and Kbd Play modes are mutually exclusive. Pressing the Shift button will light up either
the Oct Minus or Oct Plus button to indicate which of the two modes is active.
More about these features in section 3.2.0.2 [p.31] .
13 Arturia - User Manual KeyStep 37 - Introduction and Overview