Library Atlas — Faceted Music Taxonomy

System One-Pager — Pipeline, 5-Axis Taxonomy, Acoustic BPM/Key & Chirp Bridge

Non-destructive Spotify library sorting across 17,686 tracks (14,504 liked songs + 3,182 playlist tracks across 79 playlists)

01 · Extract

01_extract.py

Incremental newest-first pull of Liked Songs & owned playlists into SQLite (library.db). Never modifies or unlikes tracks.

02 · Enrich

02_enrich.py

Pulls crowd/editorial tags + weights (0–100) from Last.fm (artist & track-level for multi-genre producers) + MusicBrainz fallback.

03 · Classify

03_classify.py

Scores 69 L1/L2/L3 subgenres + 26 orthogonal facets across 5 axes, repairs co-artist homonym collisions (454 fixed), and batches unknowns.

04 · Acoustic Sidecar

10_audio_features.py

Measures 30s preview DSP onset BPM + Krumhansl-Schmuckler Camelot Key (preview_dsp / AcousticBrainz) + calibrated BPM corridors.

05 · Brain & Crates

04_review + 09_brain

Exports viewer_data.json, music_brain.json, and chirp_crates.json (CHIRP decks + SHRIKE beat-slicer manifest).

06 · Write-Back

05_write_back.py

Dry-run by default. With --apply, syncs private [GS] subgenre playlists and [GS Crate] cross-facet playlists.

Axis 1 · Primary Genre & Subgenre13 L1 · 69 Leaves

1:1 Playlist Home (99.6% classified): Electronic (7,687), Hip-Hop (2,728), World (1,385), Rock (1,357), Soundtrack (1,180), Soul/Funk (858), Asian Pop (743), Latin (591), Reggae/Dub (474), Indian (378), Jazz (192), Classical (47), Unsorted (66).

Axis 2 · Mood / Vibe6 Multi-Label

Emotional & Energy Lens: Hype / Club (4,888), Hypnotic / Groove (2,930), Late Night / Nocturnal (2,739), Euphoric / Sun-Drenched (2,361), Chill / Lounge (1,891 — surfaces Lebanese Blonde alongside Liquid Jungle & Ambient), Cinematic / Boss-Fight (1,692).

Axis 3 · Region / Scene8 Multi-Label

Geographic & Cultural Lineage: UK Continuum (3,005), Japanese OST / City Pop (2,248), Global Lounge / Dub (2,163), Anatolian / Levantine (1,389), Desi Diaspora (1,012), Soulection / Future Beats (631), Baile / Favela (444 — unites Sango & VHOOR), Afro-Diaspora (413).

Axis 4 · Style Signatures7 Multi-Label

Production & Rhythm Engine: Four-on-the-Floor Hypnotic (3,774), Hybrid Orchestral / Brass Ostinato (3,169), 808 Sub-Bass / Drill Bounce (2,573), Dub Bassline + Sitar/Oud (2,535), Chopped Vocal R&B Flip (1,589), Amen Break Roller (1,410), Tamborzão Baile Percussion (489).

Axis 5 · Sample Role (SHRIKE)5 Multi-Label

Producer & Beat-Slicer Utility: Chord / Rhodes / Modal Bed (3,750), Horn / Brass / Orchestral Stinger (2,922), Half-Time / Tempo Bridge Pivot (2,648), Vocal / Formant Micro-Chop (2,490), Drum / Breakbeat Donor (2,236).

Stage 10 · BPM & Camelot KeyChirp / Harmonic Mix

BPM Corridors & Harmonic Hubs: 102–126 House/Afro/Disco (7,819), 138–156 Drill/Grime/Mecha (3,868), 128–136 Baile/UKG/Breaks (2,656), 80–100 Downtempo/Boom-Bap (2,563), 158–176 Jungle/DnB/Footwork (780). Dominant minor hubs: 5A (3,142), 8A (3,116), 6A (2,059), 7A (1,942).

Library Atlas / 5-axis taxonomy + producer & Chirp bridge

System One-Pager — Pipeline, 5-Axis Taxonomy, Acoustic BPM/Key & Chirp Bridge

Axis 1 · Primary Genre & Subgenre13 L1 · 69 Leaves

Axis 2 · Mood / Vibe6 Multi-Label

Axis 3 · Region / Scene8 Multi-Label

Axis 4 · Style Signatures7 Multi-Label

Axis 5 · Sample Role (SHRIKE)5 Multi-Label

Stage 10 · BPM & Camelot KeyChirp / Harmonic Mix

The record — by Primary Genre

Primary subgenres by count

Insights

Suggested Playlists & Smart Crates — cross-facet recipes (_playlists)

Algorithmic Set & Playlist Studio — No-Subtree Sonic Graph Engine (11_algo_playlists.py)

Tracks & facets