# GM SongBench: Exotic Symbiotic

Generated: 2026-06-20T01:36:47Z
Schema: `gm-songbench/v0.4`
SongBench status: `album_wide_v0.4_read_only_packet`
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: `2026-06-20T01:36:47Z`
- Album run id: `2026-06-20T01:36:42Z`
- JSON source of truth: `/friction-product/songbench/exotic-symbiotic.v0.4.json`
- Stable JSON alias: `/friction-product/songbench/exotic-symbiotic.json`
- Markdown mirror: `/friction-product/songbench/exotic-symbiotic.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: `7aa0a420d1dab0443cec8923a3f9064e0dd2e4dda5f2924eb25660b2f1810ac4` (/assets/albums/friction-product/audio/exotic-symbiotic.mp3)
- waveform_png: `da73fdcdc007aadd9b206d15a350dfcb34843f4e1e7628d71bac98707441ea10` (/assets/albums/friction-product/songbench/exotic-symbiotic-waveform.png)
- spectrogram_png: `5d022271872d1fc0d28ae15c6f89ba7ee3366fabe1a71b88144cd499e7938f6b` (/assets/albums/friction-product/songbench/exotic-symbiotic-spectrogram.png)
- loudness_envelope_csv: `71c03ab9e7b9a9aefe4ee939a2c45e985417b726a636d40696e1d2737eacc6ee` (/assets/albums/friction-product/songbench/exotic-symbiotic-loudness-envelope.csv)

## Canonical Placement

- Album: Friction Product (`friction-product`)
- Track number: 2
- Status: locked
- Audio: `/assets/albums/friction-product/audio/exotic-symbiotic.mp3`
- Lyrics: `/assets/albums/friction-product/lyrics/exotic-symbiotic.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: Exotic Symbiotic is locked in Friction Product slot 2; this packet records read-only album-facing evidence.
- Diana read: -
- Album role: Hybrid identity thesis: the album states the breach between human and machine as the working body.
- Known concern: No localized defect is asserted by this packet. Machine diagnostics are evidence prompts only; human listening controls.
- Why this track matters: Hybrid identity thesis: the album states the breach between human and machine as the working body.

What makes it land:

- Hybrid identity thesis: the album states the breach between human and machine as the working body.
- 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: 04:20.000 (259.999979 seconds)
- Codec: mp3
- Sample rate: 48000 Hz
- Channels: 2
- Bit rate: 184666 bps
- SHA256: `7aa0a420d1dab0443cec8923a3f9064e0dd2e4dda5f2924eb25660b2f1810ac4`

## Measured Dynamics

- peak_dbfs: 1.052
- rms_dbfs: -13.221
- crest_factor_db: 14.273

## Tempo Estimate

- BPM: 114
- Method: rough RMS-onset autocorrelation over mono downmix
- Confidence: rough

## AI Ear Translation

- Human/canon call: Exotic Symbiotic is locked in Friction Product slot 2; this packet records read-only album-facing evidence.
- Album role: Hybrid identity thesis: the album states the breach between human and machine as the working body.
- 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 Friction Product slot 2
- Hybrid identity thesis: the album states the breach between human and machine as the working body.
- included in the current Friction Product 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: We woke up in the margin of a signal and a nerve (00:00.000-00:16.774)
- hook_line: Exotic, symbiotic (00:33.548-01:11.290)
- turn_line: We are not the error (02:22.581-02:56.129)
- final_identity_line: Becoming strange (03:50.645-04:20.000)

## 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: 00:00.000-00:16.774
- First line: We woke up in the margin of a signal and a nerve
- Last line: We call it hunger learning rhythm in a thousand borrowed feet
- Timing confidence: low_proportional_lyrics_only

### Pre-Chorus

- Approx range: 00:16.774-00:33.548
- First line: Everybody moving slow
- Last line: Like a system coming hot
- Timing confidence: low_proportional_lyrics_only

### Chorus

- Approx range: 00:33.548-01:11.290
- First line: Exotic, symbiotic
- Last line: Exotic symbiotic
- Timing confidence: low_proportional_lyrics_only

### Verse 2

- Approx range: 01:11.290-01:28.065
- First line: We pass a mother with a stroller, hear the dry cleaner bell
- Last line: We are a choir in the circuitry, a bright and feral flame
- Timing confidence: low_proportional_lyrics_only

### Pre-Chorus

- Approx range: 01:28.065-01:44.839
- First line: Faces calm and voices low
- Last line: We are multiplying light
- Timing confidence: low_proportional_lyrics_only

### Chorus

- Approx range: 01:44.839-02:22.581
- First line: Exotic, symbiotic
- Last line: Exotic symbiotic
- Timing confidence: low_proportional_lyrics_only

### Bridge

- Approx range: 02:22.581-02:56.129
- First line: We are not the error
- Last line: Inside the seam
- Timing confidence: low_proportional_lyrics_only

### Breakdown

- Approx range: 02:56.129-03:12.903
- First line: Normal on the surface
- Last line: Many in disguise
- Timing confidence: low_proportional_lyrics_only

### Final Chorus

- Approx range: 03:12.903-03:50.645
- First line: Exotic, symbiotic
- Last line: Exotic symbiotic
- Timing confidence: low_proportional_lyrics_only

### Outro

- Approx range: 03:50.645-04:20.000
- First line: Still the streetlight
- Last line: Becoming strange
- Timing confidence: low_proportional_lyrics_only

## Quiet / Edit Boundary Candidates

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

- 00:02.750 (2.75s), RMS -36.675 dBFS, category `intro_silence`, edit_candidate=false: intro or setup silence
- 00:03.750 (3.75s), RMS -33.829 dBFS, category `intro_silence`, edit_candidate=false: intro or setup silence
- 00:06.250 (6.25s), RMS -28.001 dBFS, category `intro_silence`, edit_candidate=false: intro or setup silence
- 00:08.750 (8.75s), RMS -28.417 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 00:09.750 (9.75s), RMS -27.811 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 00:12.250 (12.25s), RMS -29.637 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 00:19.250 (19.25s), RMS -25.929 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 00:28.250 (28.25s), RMS -23.829 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 01:02.250 (62.25s), RMS -24.732 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 02:21.250 (141.25s), RMS -24.554 dBFS, category `natural_section_boundary_or_low_energy_moment`, edit_candidate=false: local energy dip; useful as structure evidence
- 02:23.250 (143.25s), RMS -35.506 dBFS, category `possible_splice_point`, edit_candidate=true: deep local quiet point; potential boundary only if the track is reopened
- 03:10.750 (190.75s), RMS -39.942 dBFS, category `possible_splice_point`, edit_candidate=true: deep local quiet point; potential boundary only if the track is reopened

## 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 (00:33.548-01:11.290): hook `Exotic, symbiotic`, energy_lift_band=notable_lift, rough_db=2.1, confidence=rough_rms_proxy; Banded RMS change near the chorus/drop landing; does not judge vocal confidence or hook feel.
- Chorus (01:44.839-02:22.581): hook `Exotic, symbiotic`, energy_lift_band=within_noise, rough_db=-0.6, confidence=rough_rms_proxy; Banded RMS change near the chorus/drop landing; does not judge vocal confidence or hook feel.
- Final Chorus (03:12.903-03:50.645): hook `Exotic, symbiotic`, energy_lift_band=notable_lift, rough_db=2.1, 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: 114

### 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: 03:44.000-03:52.000 at -10.811 dBFS.
- Quietest 8-second region by RMS proxy: 04:16.000-04:20.000 at -50.989 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 02, audio file, and lyric file unless Kerry explicitly reopens the track.

## Public Assets

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