Velocity & Chance

Overview

Tap a track name in the step grid to expand the velocity lane below it. The lane shows a vertical bar for each step, and a VEL / CHNC toggle button lets you switch between velocity and chance editing.

KICK 16 S S M M

SNARE 16 S S M M

CLAP 16 S S M M

C.HH 16 S S M M

O.HH 16 S S M M

CYM 16 S S M M

BASS 12 S S M M

VEL

▲

C4

C3

▼

LEAD 24 S S M M

+

Velocity

Drag a bar up/down to set the velocity (volume) of each hit. The bar height represents the value as a percentage.

• Higher bar = louder hit
• Range: 5%–100%
• Use velocity variation to add groove and human feel

Tip: Accent the downbeats (steps 0, 4, 8, 12) at high velocity and ghost the off-beats at low velocity for a more natural feel.

Chance (Probability)

Click the CHNC button (or Shift+drag a bar) to switch to chance mode. Bars turn blue. Drag up/down to set the trigger probability.

• 100% — always triggers (default, shown when no chance is set)
• 50% — triggers half the time
• Lower values — proportional probability

Steps with chance set below 100% show a small blue diamond in the bottom-left corner of the step cell.

Chance creates generative variation — the same pattern sounds different each loop. Combined with the Scene graph’s weighted edges, you can build arrangements that never repeat exactly.

Practical Uses

Technique	How
Ghost notes	Set hi-hat off-beats to 30–50% chance
Random fills	Add fill hits at 15–25% chance on every step
Evolving grooves	Mix 80% and 60% across a pattern
Sparse textures	Set all steps to 10–20% for ambient percussion

Related

• Grid Mode — painting steps
• Piano Roll — melodic editing
• Voices — per-voice parameters affect how velocity is interpreted