# GM SongBench: Bunker Berries

Generated: 2026-06-16T06:22:26Z
Schema: `gm-songbench/v0.4`
SongBench status: `album_wide_v0.4_read_only_packet`
Freshness version: `songbench-v0-4-cw-full-coverage-2026-06-16-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: `2026-06-16T06:22:26Z`
- Album run id: `2026-06-16T06:22:02Z`
- JSON source of truth: `/captain-white/songbench/bunker-berries.v0.4.json`
- Stable JSON alias: `/captain-white/songbench/bunker-berries.json`
- Markdown mirror: `/captain-white/songbench/bunker-berries.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: false

## Content Hashes

- audio_mp3: `f9db7e4514131d7d9620f962325412e487f0a5f07d900c6e278df206f85dd71b` (/assets/albums/captain-white/audio/bunker-berries.mp3)
- waveform_png: `9964d54c58f80d5a43345d258f05293bf0d708ea3f8a67fd9e259b389a33f6d8` (/assets/albums/captain-white/songbench/bunker-berries-waveform.png)
- spectrogram_png: `a3c4c386c9242473b16d533aabc019853de8fe53834e7546fd19582cb4ed1de5` (/assets/albums/captain-white/songbench/bunker-berries-spectrogram.png)
- loudness_envelope_csv: `cbec804af0bb5c04d47fd7724e9eff6fd4752eb424b9fa8a8f64a6daa5531790` (/assets/albums/captain-white/songbench/bunker-berries-loudness-envelope.csv)

## Canonical Placement

- Album: Captain White (`captain-white`)
- Track number: 11
- Status: locked
- Audio: `/assets/albums/captain-white/audio/bunker-berries.mp3`
- Lyrics: `/assets/albums/captain-white/lyrics/bunker-berries.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: Bunker Berries is locked in Captain White slot 11; this packet records read-only album-facing evidence.
- Diana read: -
- Album role: Containment-lab track: sweetness, apocalypse, and mouth-command absurdity lock into a clean cropped album version.
- Known concern: No localized defect is asserted by this packet. Machine diagnostics are evidence prompts only; human listening controls.
- Why this track matters: Containment-lab track: sweetness, apocalypse, and mouth-command absurdity lock into a clean cropped album version.

What makes it land:

- Containment-lab track: sweetness, apocalypse, and mouth-command absurdity lock into a clean cropped album version.
- Its SongBench packet documents measured audio evidence around the locked album placement without changing canon.
- Its lyric-section map is navigational scaffolding until hand-aligned lyric/audio sync exists.

## Audio Facts

- Duration: 02:51.697 (171.697167 seconds)
- Codec: mp3
- Sample rate: 48000 Hz
- Channels: 2
- Bit rate: 192086 bps
- SHA256: `f9db7e4514131d7d9620f962325412e487f0a5f07d900c6e278df206f85dd71b`

## Measured Dynamics

- peak_dbfs: 1.823
- rms_dbfs: -14.72
- crest_factor_db: 16.543

## Tempo Estimate

- BPM: 61
- Method: rough RMS-onset autocorrelation over mono downmix
- Confidence: rough

## AI Ear Translation

- Human/canon call: Bunker Berries is locked in Captain White slot 11; this packet records read-only album-facing evidence.
- Album role: Containment-lab track: sweetness, apocalypse, and mouth-command absurdity lock into a clean cropped album version.
- 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 Captain White slot 11
- Containment-lab track: sweetness, apocalypse, and mouth-command absurdity lock into a clean cropped album version.
- included in the current Captain White sequence with audio and lyrics present

### Evidence suggesting caution

- lyric timing is proportional only and should not be treated as verified sync
- machine diagnostics cannot judge vocal confidence, pocket, performance magic, or final taste value
- this is a read-only analysis packet and must not be treated as a request to edit audio, lyrics, title, or order

### Human listening should verify

- the hook and vocal delivery support the stated album role
- any machine-flagged quiet windows are structure evidence, not automatic edit points
- the track feels like a song first and archive/provenance second

## 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: Down in the lab where the floor lights flash (00:00.000-00:33.019)
- hook_line: Try this (00:46.226-01:39.056)
- final_identity_line: Nothing tastes good anymore (02:25.282-02:51.697)

## 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: 00:00.000-00:33.019
- First line: Down in the lab where the floor lights flash
- Last line: Nothing tastes good anymore
- Timing confidence: low_proportional_lyrics_only

### Pre-Chorus

- Approx range: 00:33.019-00:46.226
- First line: Then the old doc slid through the smoke
- Last line: Let it roll where the sweet things died"
- Timing confidence: low_proportional_lyrics_only

### Chorus

- Approx range: 00:46.226-01:39.056
- First line: Try this
- Last line: Nothing tastes good anymore
- Timing confidence: low_proportional_lyrics_only

### Verse 2

- Approx range: 01:39.056-02:08.773
- First line: Thirty seconds, tongue to cheek
- Last line: He saw the bitter world reborn
- Timing confidence: low_proportional_lyrics_only

### Pre-Chorus

- Approx range: 02:08.773-02:25.282
- First line: The bunker shook
- Last line: Said, "Doctor, where did that flavor go?"
- Timing confidence: low_proportional_lyrics_only

### Chorus

- Approx range: 02:25.282-02:51.697
- First line: Try this
- Last line: Nothing tastes good anymore
- Timing confidence: low_proportional_lyrics_only

## Quiet / Edit Boundary Candidates

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

- 00:01.750 (1.75s), RMS -19.46 dBFS, category `intro_silence`, edit_candidate=false: intro or setup silence
- 00:05.750 (5.75s), RMS -19.706 dBFS, category `intro_silence`, edit_candidate=false: intro or setup silence
- 00:52.750 (52.75s), RMS -22.818 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 01:28.250 (88.25s), RMS -20.103 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 01:29.250 (89.25s), RMS -19.393 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 01:30.250 (90.25s), RMS -19.638 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 02:11.250 (131.25s), RMS -24.119 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 02:46.750 (166.75s), RMS -29.046 dBFS, category `ending_fade_or_silence`, edit_candidate=false: ending fade/silence region
- 02:47.750 (167.75s), RMS -28.521 dBFS, category `ending_fade_or_silence`, edit_candidate=false: ending fade/silence region
- 02:48.750 (168.75s), RMS -28.523 dBFS, category `ending_fade_or_silence`, edit_candidate=false: ending fade/silence region
- 02:49.750 (169.75s), RMS -30.025 dBFS, category `ending_fade_or_silence`, edit_candidate=false: ending fade/silence region
- 02:50.750 (170.75s), RMS -28.177 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 (00:46.226-01:39.056): hook `Try this`, energy_lift_band=modest_lift, rough_db=1.2, confidence=rough_rms_proxy; Banded RMS change near the chorus/drop landing; does not judge vocal confidence or hook feel.
- Chorus (02:25.282-02:51.697): hook `Try this`, energy_lift_band=notable_drop_or_fade, rough_db=-3.5, 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: 61

### 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: 01:12.000-01:20.000 at -13.451 dBFS.
- Quietest 8-second region by RMS proxy: 02:48.000-02:51.697 at -27.038 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, CW slot 11, audio file, and lyric file unless Kerry explicitly reopens the track.

## Public Assets

- JSON: `/captain-white/songbench/bunker-berries.json`
- Versioned JSON: `/captain-white/songbench/bunker-berries.v0.4.json`
- Markdown: `/captain-white/songbench/bunker-berries.md`
- Versioned Markdown: `/captain-white/songbench/bunker-berries.v0.4.md`
- Waveform: `/assets/albums/captain-white/songbench/bunker-berries-waveform.png`
- Spectrogram: `/assets/albums/captain-white/songbench/bunker-berries-spectrogram.png`
- Loudness CSV: `/assets/albums/captain-white/songbench/bunker-berries-loudness-envelope.csv`