Arturia KeyStep Pro Keyboard with Advanced Sequencer and Arpeggiator - Manual (Page 67)

4.3.5. Metronome Section
KeyStep Pro has a convenient built-in metronome, making it easy to build up empty
sequences from scratch without having to use an external rhythmic reference (such as
a metronome or drum machine) as a 'click track'. The internal speaker (located on the
front panel) produces clearly audible metronome ticks, so you don't need to use external
speakers.
The Level knob sets the output level of the metronome. This knob is retractable to prevent
accidental changes to the metronome volume. Press the knob to stow it away and press it
again to bring it back out for adjustment.
The Output jack lets you send the metronome signal to a mixer or headphone distribution
amplifier, so that multiple performers can play to the same metronome.

!: The Level knob only affects the internal speaker's loudness level. It does not affect the signal sent
from the Output jack.
4.3.6. Sustain Pedal Input
Connect an optional sustain pedal to this input. It is best to connect the pedal before
switching on the KeyStep Pro, so that it can correctly sense the pedal's polarity. Be sure to
keep your foot off the pedal when switching on the KeyStep Pro or its operation may be
reversed. If this happens, switch the KeyStep Pro off and start again.
The Sustain Pedal input port supports two MIDI Machine Control (MMC) commands: you can
use a pedal to start and stop sequences.
Arturia - User Manual Keystep Pro - KeyStep Pro Overview 61