Purpose

Step is a classic step sequencer with multiple lanes. Driven by the timeline, it plays a grid of steps across several lanes and resolves them into note lanes for a drum kit or melodic instrument, plus one control lane you can use for modulation. Lanes can be addressed as drum notes, MIDI notes, or scale degrees.

Use

Wire a timeline clock into Input 0 and, for scale-degree mode, a scale into Input 1. Set Notemode, the number of lanes and steps, and edit the grid through the Pattern and Lanenotes fields. Route notes into a drum or note-lane instrument and control into anything you want the sequence to modulate.

Inputs and outputs

• Input 0: timeline timeline clock. Required.
• Input 1: scale scale context. Optional, used in scale-degree mode.
• Output 0: notes emits the grid as note lanes, one channel per note.
• Output 1: control emits a per-step modulation lane.

Controls

• Notemode: how lanes are addressed. drum_notes, midi_notes, or scale_degrees.
• Stepcount and Lanecount: grid width and number of lanes.
• Stepoffset: shifts the playback position in the grid.
• Rootnote: base note for melodic modes.
• Gate, Velocity, Probability: note length, level, and per-step trigger chance.
• Controlmode: what the control lane carries. step, phase, active, or velocity.
• Lanenotes: the note assigned to each lane, for example 36 38 42 46 39.
• Pattern: the step grid itself, written as lane rows of hits and rests.
• Seed: repeatable random elements such as probability.

Notes

• Use drum_notes with Lanenotes set to kit notes to drive a drum instrument.
• Probability below full turns a fixed grid into a varying one without editing the pattern.
• The control lane lets one sequence both trigger notes and modulate another parameter.

Ports

Inputs

• timeline row
  timeline_state_f32_v1
• scale row
  scale_v1
• pattern_data row
  note_pattern_f32_v1
• live row
  note_voices_f32_v1

Outputs

• notes row
  note_lanes_f32_v1
• control row
  control_f32_v1
• voices row
  note_voices_f32_v1
• transport row
  timeline_state_f32_v1

Parameters

Notemode (Notemode) Menu op('step').par.Notemode

Default:

drum_notes

Options:

drum_notes, midi_notes, scale_degrees

Stepcount (Stepcount) Int op('step').par.Stepcount

Default:

16

Range:

1 to 32

Lanecount (Lanecount) Int op('step').par.Lanecount

Default:

5

Range:

1 to 16

Stepoffset (Stepoffset) Int op('step').par.Stepoffset

Default:

0

Range:

-256 to 256

Rootnote (Rootnote) Float op('step').par.Rootnote

Default:

48

Range:

0 to 127

Gate (Gate) Float op('step').par.Gate

Default:

0.5

Range:

0 to 1

Velocity (Velocity) Float op('step').par.Velocity

Default:

0.9

Range:

0 to 1

Probability (Probability) Float op('step').par.Probability

Default:

1

Range:

0 to 1

Controlmode (Controlmode) Menu op('step').par.Controlmode

Default:

step

Options:

step, phase, active, velocity

Seed (Seed) Int op('step').par.Seed

Default:

19

Range:

-100000 to 100000

Lanenotes (Lanenotes) Str op('step').par.Lanenotes

Default:

36 38 42 46 39

Pattern (Pattern) Str op('step').par.Pattern

Default:

x---x---x---x---|----x-------x---|x-x-x-x-x-x-x-x-|--------x-------|----x-------x---