Best Stochas Alternatives ranked by AI · updated Aug 2026

Stochas is a probabilistic MIDI step sequencer for producers and experimental composers. It creates evolving patterns using per-step probability, repeats, ratchets, scales, and multiple MIDI outputs.

Developer: Surge Synth Team Price: Free 🎯 surge-synthesizer.github.io/stochas

Top 6 Stochas alternatives

2 Scaler logo

Scaler

Plugin Boutique

Scaler is a music-theory and chord-generation plugin for finding scales, creating progressions, and developing melodies inside a DAW. It serves producers, songwriters,...

Pros

  • Faster for discovering contemporary chord progressions than Tonica Fugata
  • Integrates directly with DAWs and exports editable MIDI
  • Provides theory-aware voicings, scales, and progression suggestions

Cons

  • Does not generate full fugues or traditionally structured multi-voice pieces
  • Requires a DAW-based workflow for its strongest use cases
  • Less useful for notation-first composition and printed scores
3 RIFFER by Audiomodern logo

RIFFER by Audiomodern

Audiomodern

Riffer is a MIDI sequencer plugin for electronic music producers and composers. It generates and transforms note patterns using adjustable rhythm, scale,...

Pros

  • Focused pattern generation is faster to configure than full composition suites
  • Works with external software instruments through MIDI
  • Provides detailed control over rhythm, scale, velocity, and note probability

Cons

  • Primarily generates MIDI patterns rather than complete arrangements
  • Less chord and song-form guidance than Scaler or Captain Plugins
  • Requires a separate instrument plugin for audible output
4

Captain Plugins

Mixed In Key

Captain Plugins is a suite of MIDI composition tools for producers and songwriters. Its modules generate and connect chords, melodies, bass lines,...

Pros

  • Covers chords, melody, bass, and drums in one connected suite
  • More useful than Riffer for building complete song sections
  • Key-aware workflow helps maintain harmonic consistency

Cons

  • More expensive than focused MIDI sequencers
  • Less granular rhythmic probability control than Riffer
  • Suite-based workflow may be excessive for users needing one generator
5

Instacomposer

WA Production

Instacomposer is a generative MIDI composition plugin for producers and composers. It creates coordinated chord, melody, bass, and arpeggio parts that can...

Pros

  • Generates several related musical parts rather than one sequence
  • Better suited to quickly sketching full ideas than Riffer
  • Offers editable MIDI output for continued DAW production

Cons

  • Less precise for detailed step-by-step rhythmic programming
  • More dependent on its preset and composition-oriented workflow
  • Can produce less immediately usable results than focused manual sequencing
6

BlueARP

Oleg Mikheev

BlueARP is a free MIDI arpeggiator and pattern sequencer for electronic music producers. It transforms incoming chords into programmable note patterns with...

Pros

  • Free and lightweight compared with commercial MIDI generators
  • Excellent programmable arpeggiator with detailed step controls
  • Runs efficiently in demanding multi-plugin projects

Cons

  • Less capable than Riffer at standalone random pattern creation
  • Requires incoming MIDI chords for its main workflow
  • Older interface is less visually polished

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