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  1. Compose
  2. Operators

Pattern

Purpose

Section titled “Purpose”

Pattern turns the timeline and a scale into a performable musical part. It covers several roles, from lead melody and bassline to chord pulses, call-and-response phrases, orbit walks, and scatter patterns, all with artist controls for density, accent, humanize, tie, mutation, voicing, and octave. It is a flexible procedural sequencer for building parts without writing every note.

TouchDesigner Use

Section titled “TouchDesigner Use”

Wire a timeline clock into Input 0 and a scale into Input 1. Choose a Mode for the type of part, pick a Pattern shape and Rate, then route the out voices to an instrument. For a hand-built phrase, set Pattern to custom and dial the eight Degree controls.

Inputs And Outputs

Section titled “Inputs And Outputs”
  • Input 0: timeline timeline clock. Required.
  • Input 1: scale scale context. Optional, keeps the part in key.
  • Output 0: out emits the pattern as note voices.

Main Controls

Section titled “Main Controls”
  • Mode: part role. melody, bassline, chord_pulse, call_response, orbit, or scatter.
  • Pattern: shape such as custom, ascending, descending, pendulum, triad, pentatonic, neighbor, answer, or euclid.
  • Rate: step speed from half_step to quad.
  • Rootnote: base pitch.
  • Patternlength and Stepoffset: number of steps and where the pattern starts.
  • Gate, Velocity, Density, Accent: note length, level, how many steps fire, and emphasis.
  • Humanize, Tie, Mutation: timing looseness, note ties, and gradual change.
  • Spread, Voices, Range, Inversion: voicing width, voice count, octave range, and inversion.
  • Degree1 to Degree8: the scale degrees used by the custom pattern.
  • Seed: repeatable random elements.

Notes

Section titled “Notes”
  • Use custom with the Degree controls to write an exact phrase, or a preset Pattern for instant results.
  • Mutation slowly evolves the phrase over time, which is good for long generative sets.
  • The same node can act as melody, bass, or chord part just by changing Mode.

Parameters

Section titled “Parameters”

This operator does not expose user parameters in the extracted schema.

Catalog metadata

Roles

  • transform
  • mixer
  • generator
  • pattern
  • melody
  • bassline
  • accompaniment

Tags

  • pattern
  • phrase
  • bassline
  • chord-pulse
  • call-response
  • orbit
  • scatter
  • euclidean
  • note_voices

Search groups

  • timeline
  • control
  • scale
  • midi
  • music
  • arrange
  • performance