music-tonality

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Analyze tonality — key detection, chord progression, melody contour

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Sourcebenzema216/dreamina-claude-skills
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NPX Install

npx skill4agent add benzema216/dreamina-claude-skills music-tonality

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Translated version includes tags in frontmatter
music-tonality-analysisaudio-data-processingessentialibrosamusic-analysis

SKILL.md Content

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/music-tonality — Tonality & Harmony Analysis

Detect musical key, mode, chord progression, and melody pitch contour.

Usage

/music-tonality <audio_file_path>

Steps

  1. Validate the audio file path
  2. Run tonality analysis:
bash
python3 -m music_analyzer tonality "<audio_file_path>"
  1. Present results:
    • Key: Detected key and mode (e.g. "C major", "A minor")
    • Confidence: Key detection confidence
    • Chord Progression: Sequence of chords with timestamps
    • Melody Contour: Simplified pitch contour (sampled Hz values)

Detection Methods

  • Essentia (standard/full tier): Uses essentia's KeyExtractor and ChordsDetection
  • Librosa (lite tier): Krumhansl-Schmuckler key profiles + template-based chord matching

Output Fields

FieldDescription
key
Estimated key (e.g. "C major")
key_confidence
Confidence 0-1
mode
"major" or "minor"
chords
Chord events with time, duration, label
melody_contour
Sampled pitch values in Hz