It has both.
The Seq page contains a pattern-making machine that can function as a step sequencer or arpeggiator.
Sequencer mode has a pitch track that automatically transposes to follow your root note.
Arpeggiator mode instead offers a selection of modes to arpeggiate chords you play.
Both modes offer dedicated tracks to control velocity, octave, trigger probability, gate length, and slide (pitch-bends between steps).
Simply drag the grey vertical line at the right side of the pattern display to change the step length.
They add variable randomness for each track’s parameter.
Drag up and down on one of the dice to increase or decrease the amount of randomness.
Also affecting randomness is the Auto Regen parameter.
This decides how often randomization is allowed to happen.
It effectively delays any randomization at longer values (1 or more whole bars).
After that number of bars has played, tracks in the pattern will be randomized according to their dice settings.
Like elsewhere in Pigments, the arpeggiator/sequencer can sync to rhythmic subdivisions relative to your project tempo and supports binary, dotted, and triplet values.
There’s also Swing and support for binary, dotted, and triplet feels, plus a straight BPM mode.
This varies the chances of whether a step in the pattern will play its note or “lay out.”
Randomizing it can turn a robotic pattern into an unpredictable and interesting one.
Each track has a rate divider that causes its track to play at a selected fraction (from half to 1/16th) of the main pattern rate.
Having the different tracks lead and trail each other by varying amounts can create some unexpected accents and fascinating polyrhythmic effects.
Speaking of polyrhythms, engaging this button lets you drag-to-change each track’s step length separately.
When a track reaches its final step, it starts back at step 1 independently of other tracks.
Factors like octave, velocity, and slide all playing “against” the pitch track in different ways can make things really interesting, really quickly.
Locking a step means that no randomization settings will affect it.
You may, for example, want certain steps such as those that fall on downbeats to be “anchor” notes, while still changing up what goes on in the steps between them.