Melodies: Twinkle Twinkle, Ode to Joy, Happy Birthday, Fur Elise
Progressions: Pop I-V-vi-IV, 12-bar blues in A, Jazz ii-V-I turnaround
Interactive menu for picking songs. Clean helper functions for
melody and chord progression playback.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
CLI (pytheory command):
pytheory tone C4 — frequency, MIDI, overtones
pytheory scale C major — notes and intervals
pytheory chord C E G — identify, harmony, tension
pytheory key C major — full key analysis with diatonic chords
pytheory fingering Am — ASCII guitar tab
pytheory progression C major I V vi IV — build from Roman numerals
pytheory detect C D E G — detect the key
Jupyter notebook (examples/tutorial.ipynb):
46-cell interactive tutorial covering tones, scales, modes, keys,
chord analysis, progressions, world music systems, guitar fingerings,
and building a song from scratch.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New features:
- Chord.from_name("Am7") — build chords from chart names
- Chord.__str__() — prints "C major" instead of raw tones
- Interval constants: Interval.PERFECT_FIFTH, MAJOR_THIRD, OCTAVE, etc.
- PROGRESSIONS dict: 8 common progressions as Roman numeral tuples
("I-V-vi-IV", "ii-V-I", "12-bar blues", etc.)
- Tone.enharmonic: C# → "Db", natural notes → None
- Key.__str__(): "C major"
Fix: docs CI now installs all dependencies (uv sync --group docs)
so autodoc can import pytheory modules. API reference pages were
blank on GitHub Pages because pytuning/scipy weren't installed.
New example: examples/explore.py — comprehensive demo of the full API.
393 tests.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
kennethreitz