# GM SongBench: Zuman

Generated: 2026-06-20T01:37:23Z
Schema: `gm-songbench/v0.4`
SongBench status: `original_v0.4_pilot_proof_of_concept`
Freshness version: `songbench-v0-4-fp-full-coverage-2026-06-15-v1`

> This is an AI-facing artifact packet. Do not treat it as an edit order. Use JSON as source of truth. Human canon decisions override analysis.

GM SongBench turns audio into structured musical evidence. It does not replace taste; it records evidence around taste so later AI readers can reason about what the ear heard.

## Self Verification

- Expected schema: `gm-songbench/v0.4`
- Generated at UTC: `2026-06-20T01:37:23Z`
- Album run id: `2026-06-20T01:36:42Z`
- JSON source of truth: `/friction-product/songbench/zuman.v0.4.json`
- Stable JSON alias: `/friction-product/songbench/zuman.json`
- Markdown mirror: `/friction-product/songbench/zuman.v0.4.md`
- Required top-level fields: schema, schema_slug, generated_at, ai_reader_note, songbench_status, pilot_lineage, self_verification, canon_control, track, audio, analysis, diagnostics, content_hashes
- Required diagnostics: chorus_landing_band_legend, chorus_landing, groove_pocket, section_drag, label_infection_scan
- Stale-read warning: If the stable URL and versioned URL disagree, prefer the newest versioned JSON path and report the stale surface.
- Original v0.4 pilot track: Zuman
- Current track is original pilot: true

## Content Hashes

- audio_mp3: `ef6c3258ab1c1fc64aa1c1413be5a82a1ae6cd33aa13b39ca0762367dc1778cc` (/assets/albums/friction-product/audio/zuman.mp3)
- waveform_png: `3effbb311251fb90d66b31c9c68dfd1075a329f47cd3531d7001d8942f12c42a` (/assets/albums/friction-product/songbench/zuman-waveform.png)
- spectrogram_png: `3c6b72647f0b0aa2b824a8dfadb539261335894884bfbe26123368ee00240459` (/assets/albums/friction-product/songbench/zuman-spectrogram.png)
- loudness_envelope_csv: `84db7796cab15d43a2ab147546ca7bdf6290f3c26f2cb0498f09664fe0eaf083` (/assets/albums/friction-product/songbench/zuman-loudness-envelope.csv)

## Canonical Placement

- Album: Friction Product (`friction-product`)
- Track number: 15
- Status: locked
- Audio: `/assets/albums/friction-product/audio/zuman.mp3`
- Lyrics: `/assets/albums/friction-product/lyrics/zuman.txt`
- Packet type: `anatomy_provenance_packet`
- Canon status: `album_locked`
- Edit authority: SongBench is not an edit order. It can advise; Kerry's explicit canon instruction controls.

## Human Ear Seed

- Kerry read: Zuman works as the closing naming/arrival track for Friction Product.
- Diana read: -
- Album role: closing/title-identity seal
- Known concern: The phrase 'Welcome to zuman land' may need human ear confirmation for delivery, not lyric correctness.
- Why this track matters: It signs the album with the project identity and answers the opener's Are you Zuman? question from the digital present.

What makes it land:

- The title track turns the album's recurring Are you Zuman? question into a chosen identity rather than a diagnostic label.
- It moves from mediated device life to a human-machine self-name, giving the record a closing seal instead of only another thesis statement.
- Its job is structural: Ember-Glow Zuman opens the question at firelight origin; Zuman returns to it in the Face-ID present.

## Audio Facts

- Duration: 03:32.680 (212.679979 seconds)
- Codec: mp3
- Sample rate: 48000 Hz
- Channels: 2
- Bit rate: 189625 bps
- SHA256: `ef6c3258ab1c1fc64aa1c1413be5a82a1ae6cd33aa13b39ca0762367dc1778cc`

## Measured Dynamics

- peak_dbfs: -0.214
- rms_dbfs: -12.418
- crest_factor_db: 12.203

## Tempo Estimate

- BPM: 141
- Method: rough RMS-onset autocorrelation over mono downmix
- Confidence: rough

## AI Ear Translation

- Human/canon call: Zuman works as the closing naming/arrival track for Friction Product.
- Album role: closing/title-identity seal
- The audio packet should help later reviewers compare waveform energy, section shape, and lyric thesis without depending only on memory.
- No localized defect is flagged in this read-only packet; treat this as album anatomy, not an edit order.

## Evidence Balance

### Evidence the song has a clear album job

- locked FP slot 15 gives the song a closing/title-identity job
- lyrics move from blue-white device mediation to explicit chosen identity
- bookends Ember-Glow Zuman by repeating the Are you Zuman? question at a later technological layer

### Evidence suggesting caution

- lyric timing is proportional only and should not be treated as verified sync
- machine diagnostics cannot judge vocal confidence, pocket, or the final phrase's taste value

### Human listening should verify

- the final identity turn lands as earned rather than merely named
- Welcome to zuman land reads as canon-arrival rather than novelty
- chorus repetition strengthens the closer role

## Field Source Classification

- `audio, analysis.dynamics, analysis.tempo_estimate, analysis.energy_regions_8s, analysis.quiet_windows, visual_summary_words`: audio_measured (derived_rough) - Extends AI hearing with measured audio proxies.
- `diagnostics.chorus_landing`: audio_measured_plus_section_scaffolding (rough_rms_proxy) - Uses approximate lyric sections plus RMS envelope; useful for questions, not verdicts.
- `lyric_section_map, memorable_line_anchors`: lyric_structural_scaffolding (proportional_estimate) - Helps navigation but is not verified audio alignment.
- `canon_control, human_ear_seed, evidence_clear_album_job, ai_ear_translation`: human_canon_scaffolding (curation_context) - Anchors machine evidence to Kerry/canon context.

## Memorable Line Anchors

- first_thesis_line: Woke up to a blue-white glow (proportional estimate)
- hook_line: Are you zuman? (proportional estimate)
- choice_line: Or choosing where you stand? (proportional estimate)
- distinction_line: Between the tool and the gun (proportional estimate)
- final_identity_line: Yes, we're zuman (proportional estimate)

## Lyric Section Map

Timing confidence: `proportional_estimate`. These ranges are rough proportional anchors until hand-aligned timestamps exist.

Confidence ladder: proportional_estimate -> section_level_hand_alignment -> line_level_hand_alignment -> verified_lyric_audio_sync

### Verse 1

- Approx range: 00:00.000-00:37.810
- First line: Woke up to a blue-white glow
- Last line: Just a quiet optimize
- Timing confidence: low_proportional_lyrics_only

### Pre-Chorus

- Approx range: 00:37.810-00:47.262
- First line: No flashing sky, no warning roar
- Last line: It synced — it said click for more
- Timing confidence: low_proportional_lyrics_only

### Chorus

- Approx range: 00:47.262-01:25.072
- First line: Are you zuman?
- Last line: So raise your hand
- Timing confidence: low_proportional_lyrics_only

### Verse 2

- Approx range: 01:25.072-02:02.882
- First line: We stitched the sky with satellites
- Last line: Soft control at dawn
- Timing confidence: low_proportional_lyrics_only

### Pre-Chorus

- Approx range: 02:02.882-02:17.060
- First line: We didn't fall, we leaned ahead
- Last line: It synced — it said click for more
- Timing confidence: low_proportional_lyrics_only

### Chorus

- Approx range: 02:17.060-02:35.965
- First line: Are you zuman?
- Last line: Or choosing where you stand?
- Timing confidence: low_proportional_lyrics_only

### Bridge

- Approx range: 02:35.965-03:13.775
- First line: You don't have to disconnect
- Last line: Between the wave and the hand
- Timing confidence: low_proportional_lyrics_only

### Final Chorus

- Approx range: 03:13.775-03:32.680
- First line: Yes, we're zuman
- Last line: Welcome to zuman land
- Timing confidence: low_proportional_lyrics_only

## Quiet / Edit Boundary Candidates

These are machine-detected quiet windows only. Confirm by ear before any edit.

- 00:01.250 (1.25s), RMS -23.891 dBFS, category `intro_silence`, edit_candidate=false: intro or setup silence
- 00:02.250 (2.25s), RMS -24.46 dBFS, category `intro_silence`, edit_candidate=false: intro or setup silence
- 00:04.750 (4.75s), RMS -26.109 dBFS, category `intro_silence`, edit_candidate=false: intro or setup silence
- 00:05.750 (5.75s), RMS -25.431 dBFS, category `intro_silence`, edit_candidate=false: intro or setup silence
- 00:07.250 (7.25s), RMS -24.046 dBFS, category `intro_silence`, edit_candidate=false: intro or setup silence
- 00:50.250 (50.25s), RMS -20.708 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 01:25.750 (85.75s), RMS -24.535 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 02:05.750 (125.75s), RMS -20.989 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 02:41.250 (161.25s), RMS -21.094 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 03:27.750 (207.75s), RMS -23.255 dBFS, category `ending_fade_or_silence`, edit_candidate=false: ending fade/silence region
- 03:29.250 (209.25s), RMS -20.435 dBFS, category `ending_fade_or_silence`, edit_candidate=false: ending fade/silence region
- 03:30.250 (210.25s), RMS -19.87 dBFS, category `ending_fade_or_silence`, edit_candidate=false: ending fade/silence region

## Diagnostics

### Chorus Landing

Band legend:

- within_noise: abs(delta) < 0.75 - RMS difference is too small to treat as a meaningful lift/drop proxy.
- modest_lift: 0.75 <= delta < 2.0 - RMS proxy suggests a small lift into the chorus.
- notable_lift: delta >= 2.0 - RMS proxy suggests a clear energy lift into the chorus.
- modest_drop: -2.0 < delta <= -0.75 - RMS proxy suggests a small drop entering the section.
- notable_drop_or_fade: delta <= -2.0 - RMS proxy suggests a clear drop, often requiring fade/context caveats.

- Chorus (00:47.262-01:25.072): hook `Are you zuman?`, energy_lift_band=within_noise, rough_db=0.1, confidence=rough_rms_proxy; Banded RMS change near the chorus/drop landing; does not judge vocal confidence or hook feel.
- Chorus (02:17.060-02:35.965): hook `Are you zuman?`, energy_lift_band=notable_lift, rough_db=2.2, confidence=rough_rms_proxy; Banded RMS change near the chorus/drop landing; does not judge vocal confidence or hook feel.
- Final Chorus (03:13.775-03:32.680): hook `Yes, we're zuman`, energy_lift_band=notable_drop_or_fade, rough_db=-5.2, confidence=rough_rms_proxy; Banded RMS change near the chorus/drop landing; does not judge vocal confidence or hook feel. Caveat: This window overlaps the ending fade; do not read a negative band as a weak-chorus verdict.

### Groove / Pocket

- Rough tempo and dynamics only; pocket is a human-ear judgment until beat-grid analysis exists.
- Tempo proxy BPM: 141

### Section Drag

- Flags long proportional sections only; it cannot decide whether a bridge or outro has earned its length.

### Label Infection Scan

- Status: no_obvious_label_infection_detected
- Known artifact class: sung stage direction / speaker label / call-response label infection

## Visual Summary In Words

- Loudest 8-second region by RMS proxy: 02:16.000-02:24.000 at -10.733 dBFS.
- Quietest 8-second region by RMS proxy: 03:28.000-03:32.680 at -33.243 dBFS.
- Waveform and spectrogram images should be read as supporting evidence for section density, energy ramps, and unusual transients, not as final taste judgments.

## Current Edit Triage

- Current action: no edit requested for this track.
- Use quiet_windows as future splice/crop candidate evidence only after human listening confirms a local defect.
- Preserve title, FP slot 15, audio file, and lyric file unless Kerry explicitly reopens the track.

## Public Assets

- JSON: `/friction-product/songbench/zuman.json`
- Versioned JSON: `/friction-product/songbench/zuman.v0.4.json`
- Markdown: `/friction-product/songbench/zuman.md`
- Versioned Markdown: `/friction-product/songbench/zuman.v0.4.md`
- Waveform: `/assets/albums/friction-product/songbench/zuman-waveform.png`
- Spectrogram: `/assets/albums/friction-product/songbench/zuman-spectrogram.png`
- Loudness CSV: `/assets/albums/friction-product/songbench/zuman-loudness-envelope.csv`