v0.6.2 - Feature Release

• Density methods
• Sequence helper functions
• README slim down and link to dedicated documentation site
• Allow empty steps to be valid

Full Changelog: v0.6.1...v0.6.2

v0.6.1 - Documentation formatting

Boring release. Just docstring formats for the upcoming documentation.

Full Changelog: v0.6.0...v0.6.1

v0.6.0 - Motifs, Phrases, Progressions

• new motifs.py (Motif/Phrase, +2,289), progressions.py (the unified Progression value, +1,861), forms/cadences/energy, melody engine v2, presets, composition.py (+2,471).
• New public API surface (Motif, Phrase, Progression, Form, Section, cadences, roles, sieve…).
• Various fixes
• Docstring formatting updates

Breaking changes:

• comp.seed is now a property" (comp.seed = 42, not comp.seed(42)); all RNG streams re-keyed → seeded playback changes for every existing seed.
• span-based progressions, live clock pre-commits a step, freeze() returns the new value; also removes progression.py/ChordTimeline (note tests/test_progression.py is deleted, −360).

Full Changelog: v0.5.1...v0.6.0

v0.5.1 - Terminology Adjustments

Changes to certain terms in order to remove ambiguity before next batch of work. Some breaking changes in here.

Full Changelog: v0.5.0...v0.5.1

v0.5.0 - API vocab overhaul, plus misc features and fixes

Breaking changes - API vocab has been unified for consistency:

• Decorators @pattern/@layer/@trigger: unit= -> step_duration=
• p.strum(): offset= -> spacing=
• p.swing(): amount= -> percent=
• p.evolve(): steps= -> length=
• p.fibonacci(): steps= -> count= (now a required argument)
• p.branch(): seed=(pitch list) -> pitches= (and a new integer seed= for the RNG)
• p.cellular_2d(): the overloaded seed= split into initial_state= ("center"/"random"/grid) + an integer seed=
• Generators (euclidean, bresenham, cellular, etc.): dropout= -> probability= - and the meaning flipped to "chance a note plays" (1.0 = always), consistent with hit_steps/sequence
• Also removed the pre-existing cellular/generate_cellular_automaton no-op aliases

Behaviour change (not breaking but will sound different):

• p.broken_chord() default velocity 100 -> 90, matching the softer chord/strum bucket. Velocity defaults are now routed through named constants (single 100 / chord 90 / generative 80 / cellular 60 / ghost 35).

New features:

• Declarative chord progressions - new p.progression() and comp.chords(), plus between(low, high, step=...) for irregular/quantised harmonic rhythm (new progression.py + harmonic_rhythm.py modules, new public exports).
• Per-device latency compensation - latency_ms can now be set at device initialization; the engine aligns faster devices to the slowest so multi-device rigs stay phase-tight.
• Unified randomness controls - seed=/rng= are now accepted consistently across the generative methods (precedence rng > seed > the pattern's own RNG).

Instruments & harmony

• Ambiguous GM drum mappings removed, drum map tidied; bumped to the latest PyMidiDefs.
• Chord-graph refinements (functional-major, aeolian/dorian-minor, lydian-major, chromatic-mediant) making more diatonic colour chords reachable.

Also various fixes and documentation corrections.

Full Changelog: v0.4.1...v0.5.0

v0.4.1 - Feature Release

• Create sandbox folder for local work
• Documentation improvements
• Add "detatched" articulation
• Add universal velocity tuple syntax
• Fix for crash in live-coding

Full Changelog: v0.4.0...v0.4.1

v0.4.0 - Feature Release

• CC name maps - string-based CC access in p.cc() / p.cc_ramp() via cc_name_map= on the decorator
• RPN/NRPN parameter control - p.nrpn(), p.rpn(), nrpn_ramp(), rpn_ramp() with name-map resolution and the same-pulse FIFO ordering fix in the sequencer
• MIDI mirroring - mirrors=[(device, channel), ...] on patterns/layers/triggers; runtime composition.mirror() / unmirror() / unmirror_all()
• Live coding (two flavours) - file-watching via composition.watch(path); in-memory string via composition.load_patterns(source); both share the diff-and-unregister pipeline via _apply_source_async. New composition.unregister(name) tears down sustaining notes across primary + mirrors.
• Multi-device output and aliases - midi_output(), midi_input() can be called repeatedly to register additional devices with optional name aliases
• Fixes to examples

Full Changelog: v0.3.4...v0.4.0

v0.3.4 - Features, Maintenance, Bug-Fixes

v0.3.4 - Features, Maintenance, Bug-Fixes

• MIDI constant definitions now sourced from PyMidiDefs (canonical source for MIDI 1.0/2.0 standards)
• All existing imports work unchanged: import subsequence.constants.midi_notes as notes, etc.
• New capabilities now available:
  • notes.note_to_name(60) → "C4" and notes.name_to_note("Db4") → 61
  • Octave -1 notes (C_NEG1 through B_NEG1, MIDI 0-11)
  • GM instrument program map: import subsequence.constants.instruments.gm_instruments as gm
  • CC constants now explicitly available: import subsequence.constants.midi_cc as cc
• Multi-device MIDI I/O (522e838, d299a0a, ebf9cf2, 137628c, 4d993c4) - full multi-input/output support with device aliases and cc_map/cc_forward routing
• MidiEvent refactor + _has_pitch_at_beat() helper (9dc2c48) - cleaner dataclass conversion, refactored euclidean/bresenham/ghost_fill
• Rounding error fix (91cdd95) - _has_pitch_at_beat() now uses truncation to match placement (beat-to-pulse consistency)
• scale_notes docstring (6772a70) - documented key/low independence and the silent-skip behavior
• CC realtime forwarding (ae64c80) - instant cc_forward with auto-routing
• Ghost fill bias modification (9ea8065) - bias results can now be passed and modified
• Tuner tone script (06853c9) - new example utility
• CC filter params constants (1ce9f26) - new constants file

Upgrade Instructions:

pip install -e .  # Refreshes dependencies

Full Changelog: v0.3.3...v0.3.4

v0.3.3 - Features, Maintenance, Bug-Fixes

• Reordered _run() in sequencer.py to resolve device indices and share configuration before opening hardware ports.
• Internal MIDI setup now triggers before pattern building, ensuring the system tracks correctly even during the first cycle.
• Fixed a bug in MIDI device alias storage and improved tracking for the primary input alias.
• Resolved inconsistencies when following external clocks across multiple MIDI devices.
• Added subsequence/constants/midi_cc.py containing a comprehensive map of MIDI CC definitions.
• Added scripts/tuner_tone.py as a utility to help tune drifting analogue instruments using reference tones.
• Updated the MIDI observer script to use intuitive 1-indexed channels instead of 0-based.
• Standardized pulse lookups to use truncation

Full Changelog: v0.3.2...v0.3.3

v0.3.2 - Feature Release

• Multiple MIDI Device Support: A major architectural update to Composition, Sequencer, and MidiUtils allowing multiple input and output devices to be managed simultaneously.
• Customizable Ghost Fill Bias: You can now modify the results of a ghost fill bias calculation and pass them back into the ghost_fill method, enabling highly customized probability-based note placement.
• MIDI CC Realtime Forwarding: Added the ability to forward incoming MIDI CC messages to output devices in realtime, with a dedicated with a dedicated midi.py module for handling these low-latency messages.

Full Changelog: v0.3.1...v0.3.2