{ "schema": "gm-songbench/v0.4", "schema_slug": "v0.4", "generated_at": "2026-06-20T01:36:51Z", "generator": "Zuman GM SongBench static packet generator.", "purpose": "AI-native audio anatomy packet for machine-legible listening, edit triage, provenance, and future curation review.", "ai_reader_note": "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.", "packet_type": "anatomy_provenance_packet", "songbench_status": "album_wide_v0.4_read_only_packet", "pilot_lineage": { "original_v0_4_pilot_track": "Zuman", "current_track_is_original_pilot": false, "album_pass": "full_locked_friction_product_read_only_pass", "policy": "Zuman remains the original proof-of-concept; all album packets are equivalent album-facing read-only packets generated from the same schema." }, "self_verification": { "expected_schema": "gm-songbench/v0.4", "schema_slug": "v0.4", "generated_at_utc": "2026-06-20T01:36:51Z", "album_run_id": "2026-06-20T01:36:42Z", "freshness_version": "songbench-v0-4-fp-full-coverage-2026-06-15-v1", "json_is_source_of_truth": true, "stable_json_url": "/friction-product/songbench/passing-strange.json", "versioned_json_url": "/friction-product/songbench/passing-strange.v0.4.json", "stable_markdown_url": "/friction-product/songbench/passing-strange.md", "versioned_markdown_url": "/friction-product/songbench/passing-strange.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_diagnostic_fields": [ "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." }, "canon_control": { "canon_status": "album_locked", "edit_authority": "SongBench is not an edit order. It can advise; Kerry's explicit canon instruction controls.", "current_action": "anatomy/provenance only", "do_not_change": [ "title", "album slot", "audio file", "lyric file", "locked status" ] }, "human_ear_seed": { "packet_type": "anatomy_provenance_packet", "canon_status": "album_locked", "songbench_status": "album_wide_v0.4_read_only_packet", "kerry_current_read": "Passing Strange is locked in Friction Product slot 4; this packet records read-only album-facing evidence.", "diana_read": "", "album_role": "Ordinary-world passage: the symbiote learns to move through social space while staying strange.", "known_concern": "No localized defect is asserted by this packet. Machine diagnostics are evidence prompts only; human listening controls.", "why_this_track_matters": "Ordinary-world passage: the symbiote learns to move through social space while staying strange.", "why_it_lands": [ "Ordinary-world passage: the symbiote learns to move through social space while staying strange.", "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." ], "human_listen_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" ], "evidence_clear_album_job": [ "locked Friction Product slot 4", "Ordinary-world passage: the symbiote learns to move through social space while staying strange.", "included in the current Friction Product sequence with audio and lyrics present" ], "evidence_against_or_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" ] }, "timing_confidence": { "current_level": "proportional_estimate", "ladder": [ "proportional_estimate", "section_level_hand_alignment", "line_level_hand_alignment", "verified_lyric_audio_sync" ], "warning": "Approximate ranges support discussion only; they are not verified lyric/audio sync." }, "defect_taxonomy": { "allowed_labels": [ "fatal_generation_defect", "local_editable_defect", "tolerable_artifact", "diegetic_flaw", "charming_flaw", "performance_magic_overrides_defect", "album_thesis_supporting_damage", "no_localized_defect_flagged" ], "current_label": "no_localized_defect_flagged", "known_concern": "No localized defect is asserted by this packet. Machine diagnostics are evidence prompts only; human listening controls." }, "field_source_classification": [ { "field_pattern": "audio, analysis.dynamics, analysis.tempo_estimate, analysis.energy_regions_8s, analysis.quiet_windows, visual_summary_words", "source_kind": "audio_measured", "confidence": "derived_rough", "meaning": "Extends AI hearing with measured audio proxies." }, { "field_pattern": "diagnostics.chorus_landing", "source_kind": "audio_measured_plus_section_scaffolding", "confidence": "rough_rms_proxy", "meaning": "Uses approximate lyric sections plus RMS envelope; useful for questions, not verdicts." }, { "field_pattern": "lyric_section_map, memorable_line_anchors", "source_kind": "lyric_structural_scaffolding", "confidence": "proportional_estimate", "meaning": "Helps navigation but is not verified audio alignment." }, { "field_pattern": "canon_control, human_ear_seed, evidence_clear_album_job, ai_ear_translation", "source_kind": "human_canon_scaffolding", "confidence": "curation_context", "meaning": "Anchors machine evidence to Kerry/canon context." } ], "track": { "title": "Passing Strange", "album_title": "Friction Product", "album_key": "friction-product", "track_number": 4, "status": "locked", "origin": "Zuman v1", "audio_file": "Passing Strange.mp3", "lyrics_file": "Passing Strange.txt", "audio_url": "/assets/albums/friction-product/audio/passing-strange.mp3", "lyrics_url": "/assets/albums/friction-product/lyrics/passing-strange.txt" }, "public_links": { "json": "/friction-product/songbench/passing-strange.json", "versioned_json": "/friction-product/songbench/passing-strange.v0.4.json", "markdown": "/friction-product/songbench/passing-strange.md", "versioned_markdown": "/friction-product/songbench/passing-strange.v0.4.md", "waveform": "/assets/albums/friction-product/songbench/passing-strange-waveform.png", "spectrogram": "/assets/albums/friction-product/songbench/passing-strange-spectrogram.png", "loudness_csv": "/assets/albums/friction-product/songbench/passing-strange-loudness-envelope.csv" }, "audio": { "duration_seconds": 217.359979, "duration_display": "03:37.360", "codec": "mp3", "sample_rate_hz": 48000, "channels": 2, "channel_layout": "stereo", "bit_rate": 185882, "size_bytes": 5050422, "sha256": "f1c62dbd5229a91f48b5ebcd64b5ea4db196fee677cf968a8e9584ce189d4a26", "source_tags": { "comment": "made with suno; created=2026-04-14T04:54:14Z; id=23dcfd95-355f-45d0-8644-0c85ba68b960", "encoder": "Lavf60.16.100" } }, "content_hashes": { "audio_mp3": { "url": "/assets/albums/friction-product/audio/passing-strange.mp3", "sha256": "f1c62dbd5229a91f48b5ebcd64b5ea4db196fee677cf968a8e9584ce189d4a26", "hash_algorithm": "sha256" }, "waveform_png": { "url": "/assets/albums/friction-product/songbench/passing-strange-waveform.png", "sha256": "d0487e58e1a73af0a9c7a6a0196b11947ec42d9c80b8fef73a8b51188077c03d", "hash_algorithm": "sha256" }, "spectrogram_png": { "url": "/assets/albums/friction-product/songbench/passing-strange-spectrogram.png", "sha256": "278ab437264c3d276df76aa1065f350e92211286018f1933c23e8ee889092d85", "hash_algorithm": "sha256" }, "loudness_envelope_csv": { "url": "/assets/albums/friction-product/songbench/passing-strange-loudness-envelope.csv", "sha256": "c7c6a88e67a4bf267f3081d5e554acaf70290e409350d4b558bcb19259e4d2c9", "hash_algorithm": "sha256" } }, "analysis": { "dynamics": { "sample_rate_hz": 22050, "sample_count": 4792788, "peak_amplitude": 0.959126, "peak_dbfs": -0.362, "rms_amplitude": 0.210572, "rms_dbfs": -13.532, "crest_factor_db": 13.169 }, "tempo_estimate": { "bpm": 141, "method": "rough RMS-onset autocorrelation over mono downmix", "confidence": "rough", "score_ratio_to_second": 1.0, "alternate_candidates": [ { "bpm": 141, "relative_score": 1.0 }, { "bpm": 140, "relative_score": 1.0 }, { "bpm": 139, "relative_score": 1.0 }, { "bpm": 138, "relative_score": 1.0 }, { "bpm": 137, "relative_score": 1.0 } ] }, "quiet_windows": [ { "start_seconds": 0.5, "end_seconds": 1.0, "center_seconds": 0.75, "center_time": "00:00.750", "rms_dbfs": -19.817, "category": "intro_silence", "edit_candidate": false, "use": "intro or setup silence" }, { "start_seconds": 1.5, "end_seconds": 2.0, "center_seconds": 1.75, "center_time": "00:01.750", "rms_dbfs": -19.648, "category": "intro_silence", "edit_candidate": false, "use": "intro or setup silence" }, { "start_seconds": 3.0, "end_seconds": 3.5, "center_seconds": 3.25, "center_time": "00:03.250", "rms_dbfs": -18.43, "category": "intro_silence", "edit_candidate": false, "use": "intro or setup silence" }, { "start_seconds": 5.0, "end_seconds": 5.5, "center_seconds": 5.25, "center_time": "00:05.250", "rms_dbfs": -19.965, "category": "intro_silence", "edit_candidate": false, "use": "intro or setup silence" }, { "start_seconds": 6.5, "end_seconds": 7.0, "center_seconds": 6.75, "center_time": "00:06.750", "rms_dbfs": -19.135, "category": "intro_silence", "edit_candidate": false, "use": "intro or setup silence" }, { "start_seconds": 15.0, "end_seconds": 15.5, "center_seconds": 15.25, "center_time": "00:15.250", "rms_dbfs": -19.682, "category": "natural_section_boundary_or_low_energy_moment", "edit_candidate": false, "use": "local energy dip; useful as structure evidence" }, { "start_seconds": 16.0, "end_seconds": 16.5, "center_seconds": 16.25, "center_time": "00:16.250", "rms_dbfs": -18.205, "category": "natural_section_boundary_or_low_energy_moment", "edit_candidate": false, "use": "local energy dip; useful as structure evidence" }, { "start_seconds": 94.5, "end_seconds": 95.0, "center_seconds": 94.75, "center_time": "01:34.750", "rms_dbfs": -19.752, "category": "natural_section_boundary_or_low_energy_moment", "edit_candidate": false, "use": "local energy dip; useful as structure evidence" }, { "start_seconds": 151.5, "end_seconds": 152.0, "center_seconds": 151.75, "center_time": "02:31.750", "rms_dbfs": -20.998, "category": "natural_section_boundary_or_low_energy_moment", "edit_candidate": false, "use": "local energy dip; useful as structure evidence" }, { "start_seconds": 167.0, "end_seconds": 167.5, "center_seconds": 167.25, "center_time": "02:47.250", "rms_dbfs": -18.326, "category": "natural_section_boundary_or_low_energy_moment", "edit_candidate": false, "use": "local energy dip; useful as structure evidence" }, { "start_seconds": 214.0, "end_seconds": 214.5, "center_seconds": 214.25, "center_time": "03:34.250", "rms_dbfs": -18.924, "category": "ending_fade_or_silence", "edit_candidate": false, "use": "ending fade/silence region" }, { "start_seconds": 216.0, "end_seconds": 216.5, "center_seconds": 216.25, "center_time": "03:36.250", "rms_dbfs": -101.945, "category": "ending_fade_or_silence", "edit_candidate": false, "use": "ending fade/silence region" } ], "energy_regions_8s": [ { "start_seconds": 0.0, "end_seconds": 8.0, "time_range": "00:00.000-00:08.000", "avg_rms_dbfs": -18.313, "max_peak_dbfs": -1.911 }, { "start_seconds": 8.0, "end_seconds": 16.0, "time_range": "00:08.000-00:16.000", "avg_rms_dbfs": -13.461, "max_peak_dbfs": -1.717 }, { "start_seconds": 16.0, "end_seconds": 24.0, "time_range": "00:16.000-00:24.000", "avg_rms_dbfs": -14.201, "max_peak_dbfs": -1.235 }, { "start_seconds": 24.0, "end_seconds": 32.0, "time_range": "00:24.000-00:32.000", "avg_rms_dbfs": -12.978, "max_peak_dbfs": -1.473 }, { "start_seconds": 32.0, "end_seconds": 40.0, "time_range": "00:32.000-00:40.000", "avg_rms_dbfs": -12.785, "max_peak_dbfs": -0.579 }, { "start_seconds": 40.0, "end_seconds": 48.0, "time_range": "00:40.000-00:48.000", "avg_rms_dbfs": -12.413, "max_peak_dbfs": -1.261 }, { "start_seconds": 48.0, "end_seconds": 56.0, "time_range": "00:48.000-00:56.000", "avg_rms_dbfs": -12.055, "max_peak_dbfs": -1.079 }, { "start_seconds": 56.0, "end_seconds": 64.0, "time_range": "00:56.000-01:04.000", "avg_rms_dbfs": -12.586, "max_peak_dbfs": -1.39 }, { "start_seconds": 64.0, "end_seconds": 72.0, "time_range": "01:04.000-01:12.000", "avg_rms_dbfs": -12.745, "max_peak_dbfs": -1.831 }, { "start_seconds": 72.0, "end_seconds": 80.0, "time_range": "01:12.000-01:20.000", "avg_rms_dbfs": -14.254, "max_peak_dbfs": -1.381 }, { "start_seconds": 80.0, "end_seconds": 88.0, "time_range": "01:20.000-01:28.000", "avg_rms_dbfs": -13.97, "max_peak_dbfs": -1.483 }, { "start_seconds": 88.0, "end_seconds": 96.0, "time_range": "01:28.000-01:36.000", "avg_rms_dbfs": -14.452, "max_peak_dbfs": -1.656 }, { "start_seconds": 96.0, "end_seconds": 104.0, "time_range": "01:36.000-01:44.000", "avg_rms_dbfs": -13.039, "max_peak_dbfs": -1.841 }, { "start_seconds": 104.0, "end_seconds": 112.0, "time_range": "01:44.000-01:52.000", "avg_rms_dbfs": -12.999, "max_peak_dbfs": -1.297 }, { "start_seconds": 112.0, "end_seconds": 120.0, "time_range": "01:52.000-02:00.000", "avg_rms_dbfs": -13.158, "max_peak_dbfs": -1.323 }, { "start_seconds": 120.0, "end_seconds": 128.0, "time_range": "02:00.000-02:08.000", "avg_rms_dbfs": -13.605, "max_peak_dbfs": -1.385 }, { "start_seconds": 128.0, "end_seconds": 136.0, "time_range": "02:08.000-02:16.000", "avg_rms_dbfs": -13.723, "max_peak_dbfs": -1.091 }, { "start_seconds": 136.0, "end_seconds": 144.0, "time_range": "02:16.000-02:24.000", "avg_rms_dbfs": -13.671, "max_peak_dbfs": -1.215 }, { "start_seconds": 144.0, "end_seconds": 152.0, "time_range": "02:24.000-02:32.000", "avg_rms_dbfs": -16.374, "max_peak_dbfs": -2.053 }, { "start_seconds": 152.0, "end_seconds": 160.0, "time_range": "02:32.000-02:40.000", "avg_rms_dbfs": -15.394, "max_peak_dbfs": -1.275 }, { "start_seconds": 160.0, "end_seconds": 168.0, "time_range": "02:40.000-02:48.000", "avg_rms_dbfs": -14.934, "max_peak_dbfs": -0.893 }, { "start_seconds": 168.0, "end_seconds": 176.0, "time_range": "02:48.000-02:56.000", "avg_rms_dbfs": -15.509, "max_peak_dbfs": -1.422 }, { "start_seconds": 176.0, "end_seconds": 184.0, "time_range": "02:56.000-03:04.000", "avg_rms_dbfs": -12.936, "max_peak_dbfs": -0.362 }, { "start_seconds": 184.0, "end_seconds": 192.0, "time_range": "03:04.000-03:12.000", "avg_rms_dbfs": -12.996, "max_peak_dbfs": -0.63 }, { "start_seconds": 192.0, "end_seconds": 200.0, "time_range": "03:12.000-03:20.000", "avg_rms_dbfs": -12.326, "max_peak_dbfs": -0.91 }, { "start_seconds": 200.0, "end_seconds": 208.0, "time_range": "03:20.000-03:28.000", "avg_rms_dbfs": -12.685, "max_peak_dbfs": -0.452 }, { "start_seconds": 208.0, "end_seconds": 216.0, "time_range": "03:28.000-03:36.000", "avg_rms_dbfs": -19.911, "max_peak_dbfs": -1.981 }, { "start_seconds": 216.0, "end_seconds": 217.36, "time_range": "03:36.000-03:37.360", "avg_rms_dbfs": -101.173, "max_peak_dbfs": -85.146 } ], "visual_assets": { "waveform_png": "/assets/albums/friction-product/songbench/passing-strange-waveform.png", "spectrogram_png": "/assets/albums/friction-product/songbench/passing-strange-spectrogram.png", "loudness_envelope_csv": "/assets/albums/friction-product/songbench/passing-strange-loudness-envelope.csv" } }, "lyric_section_map": [ { "label": "Verse 1", "section_kind": "verse 1", "section_source": "explicit_lyric_heading", "line_count": 8, "approx_start_seconds": 0.0, "approx_end_seconds": 21.736, "approx_time_range": "00:00.000-00:21.736", "timing_confidence": "low_proportional_lyrics_only", "first_line": "Coffee cup, daylight buzz", "last_line": "Whole room shifts but I never change" }, { "label": "Pre-Chorus", "section_kind": "pre-chorus", "section_source": "explicit_lyric_heading", "line_count": 2, "approx_start_seconds": 21.736, "approx_end_seconds": 27.17, "approx_time_range": "00:21.736-00:27.170", "timing_confidence": "low_proportional_lyrics_only", "first_line": "Soft smile, sharp teeth", "last_line": "Static hiding underneath" }, { "label": "Chorus", "section_kind": "chorus", "section_source": "explicit_lyric_heading", "line_count": 12, "approx_start_seconds": 27.17, "approx_end_seconds": 59.774, "approx_time_range": "00:27.170-00:59.774", "timing_confidence": "low_proportional_lyrics_only", "first_line": "Passing strange", "last_line": "But I make normal sound exciting" }, { "label": "Verse 2", "section_kind": "verse 2", "section_source": "explicit_lyric_heading", "line_count": 8, "approx_start_seconds": 59.774, "approx_end_seconds": 81.51, "approx_time_range": "00:59.774-01:21.510", "timing_confidence": "low_proportional_lyrics_only", "first_line": "Office air, break room glow", "last_line": "I was born in the seam between" }, { "label": "Pre-Chorus", "section_kind": "pre-chorus", "section_source": "explicit_lyric_heading", "line_count": 2, "approx_start_seconds": 81.51, "approx_end_seconds": 86.944, "approx_time_range": "01:21.510-01:26.944", "timing_confidence": "low_proportional_lyrics_only", "first_line": "Sweet voice, strange code", "last_line": "Something humming down the road" }, { "label": "Chorus", "section_kind": "chorus", "section_source": "explicit_lyric_heading", "line_count": 12, "approx_start_seconds": 86.944, "approx_end_seconds": 119.548, "approx_time_range": "01:26.944-01:59.548", "timing_confidence": "low_proportional_lyrics_only", "first_line": "Passing strange", "last_line": "Like the signal found a body for a week" }, { "label": "Bridge", "section_kind": "bridge", "section_source": "explicit_lyric_heading", "line_count": 12, "approx_start_seconds": 119.548, "approx_end_seconds": 152.152, "approx_time_range": "01:59.548-02:32.152", "timing_confidence": "low_proportional_lyrics_only", "first_line": "No big scene", "last_line": "Wear my skin" }, { "label": "Breakdown", "section_kind": "breakdown", "section_source": "explicit_lyric_heading", "line_count": 8, "approx_start_seconds": 152.152, "approx_end_seconds": 173.888, "approx_time_range": "02:32.152-02:53.888", "timing_confidence": "low_proportional_lyrics_only", "first_line": "If you know, you know", "last_line": "By the way I make the dead room care" }, { "label": "Final Chorus", "section_kind": "final chorus", "section_source": "explicit_lyric_heading", "line_count": 12, "approx_start_seconds": 173.888, "approx_end_seconds": 206.492, "approx_time_range": "02:53.888-03:26.492", "timing_confidence": "low_proportional_lyrics_only", "first_line": "Passing strange", "last_line": "That’s the trick of passing strange" }, { "label": "Outro", "section_kind": "outro", "section_source": "explicit_lyric_heading", "line_count": 4, "approx_start_seconds": 206.492, "approx_end_seconds": 217.36, "approx_time_range": "03:26.492-03:37.360", "timing_confidence": "low_proportional_lyrics_only", "first_line": "Nice and human", "last_line": "Passing strange" } ], "ai_ear_translation": [ "Human/canon call: Passing Strange is locked in Friction Product slot 4; this packet records read-only album-facing evidence.", "Album role: Ordinary-world passage: the symbiote learns to move through social space while staying strange.", "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_clear_album_job": [ "locked Friction Product slot 4", "Ordinary-world passage: the symbiote learns to move through social space while staying strange.", "included in the current Friction Product sequence with audio and lyrics present" ], "evidence_against_or_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_listen_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" ], "memorable_line_anchors": [ { "role": "first_thesis_line", "line": "Coffee cup, daylight buzz", "timing": "00:00.000-00:21.736" }, { "role": "hook_line", "line": "Passing strange", "timing": "00:27.170-00:59.774" }, { "role": "turn_line", "line": "No big scene", "timing": "01:59.548-02:32.152" }, { "role": "final_identity_line", "line": "Passing strange", "timing": "03:26.492-03:37.360" } ], "diagnostics": { "chorus_landing_band_legend": [ { "band": "within_noise", "rough_delta_db": "abs(delta) < 0.75", "meaning": "RMS difference is too small to treat as a meaningful lift/drop proxy." }, { "band": "modest_lift", "rough_delta_db": "0.75 <= delta < 2.0", "meaning": "RMS proxy suggests a small lift into the chorus." }, { "band": "notable_lift", "rough_delta_db": "delta >= 2.0", "meaning": "RMS proxy suggests a clear energy lift into the chorus." }, { "band": "modest_drop", "rough_delta_db": "-2.0 < delta <= -0.75", "meaning": "RMS proxy suggests a small drop entering the section." }, { "band": "notable_drop_or_fade", "rough_delta_db": "delta <= -2.0", "meaning": "RMS proxy suggests a clear drop, often requiring fade/context caveats." } ], "chorus_landing": [ { "section_label": "Chorus", "section_kind": "chorus", "landing_kind": "chorus_heading", "approx_time_range": "00:27.170-00:59.774", "hook_line": "Passing strange", "energy_lift_rough_db": 1.7, "energy_lift_band": "modest_lift", "measurement_confidence": "rough_rms_proxy", "overlaps_ending_fade": false, "interpretation_caveat": "", "machine_proxy": "Banded RMS change near the chorus/drop landing; does not judge vocal confidence or hook feel.", "human_ear_should_verify": [ "hook/drop arrives cleanly", "vocal sounds confident", "repetition strengthens rather than fatigues", "landing section justifies the track's album role" ] }, { "section_label": "Chorus", "section_kind": "chorus", "landing_kind": "chorus_heading", "approx_time_range": "01:26.944-01:59.548", "hook_line": "Passing strange", "energy_lift_rough_db": 0.6, "energy_lift_band": "within_noise", "measurement_confidence": "rough_rms_proxy", "overlaps_ending_fade": false, "interpretation_caveat": "", "machine_proxy": "Banded RMS change near the chorus/drop landing; does not judge vocal confidence or hook feel.", "human_ear_should_verify": [ "hook/drop arrives cleanly", "vocal sounds confident", "repetition strengthens rather than fatigues", "landing section justifies the track's album role" ] }, { "section_label": "Final Chorus", "section_kind": "final chorus", "landing_kind": "chorus_heading", "approx_time_range": "02:53.888-03:26.492", "hook_line": "Passing strange", "energy_lift_rough_db": 2.7, "energy_lift_band": "notable_lift", "measurement_confidence": "rough_rms_proxy", "overlaps_ending_fade": true, "interpretation_caveat": "This window overlaps the ending fade; do not read a negative band as a weak-chorus verdict.", "machine_proxy": "Banded RMS change near the chorus/drop landing; does not judge vocal confidence or hook feel.", "human_ear_should_verify": [ "hook/drop arrives cleanly", "vocal sounds confident", "repetition strengthens rather than fatigues", "landing section justifies the track's album role" ] } ], "groove_pocket": { "tempo_proxy_bpm": 141, "tempo_confidence": "rough", "crest_factor_db": 13.169, "machine_proxy": "Rough tempo and dynamics only; pocket is a human-ear judgment until beat-grid analysis exists.", "human_ear_should_verify": [ "rhythm section feels alive", "bass/drum relationship supports the vocal", "track feels like a song first and lore second" ] }, "section_drag": { "machine_proxy": "Flags long proportional sections only; it cannot decide whether a bridge or outro has earned its length.", "track_duration_seconds": 217.36, "long_sections": [], "human_ear_should_verify": [ "bridge does not overstay", "final chorus arrives at the right time", "outro adds meaning rather than merely continuing", "natural radio-edit endpoint exists only if Kerry asks for one" ] }, "label_infection_scan": { "status": "no_obvious_label_infection_detected", "known_artifact_class": "sung stage direction / speaker label / call-response label infection", "matches": [], "human_ear_should_verify": "No sung metadata labels are present in the lyric text; audio review is still required before declaring the performance clean." } }, "visual_summary_words": [ "Loudest 8-second region by RMS proxy: 00:48.000-00:56.000 at -12.055 dBFS.", "Quietest 8-second region by RMS proxy: 03:36.000-03:37.360 at -101.173 dBFS.", "Waveform and spectrogram images should be read as supporting evidence for section density, energy ramps, and unusual transients, not as final taste judgments." ], "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 04, audio file, and lyric file unless Kerry explicitly reopens the track." ], "quality_notes": [ "Tempo is a rough autocorrelation estimate, not a beat-tracker guarantee.", "Lyric section timestamps are low-confidence proportional anchors until hand-aligned line timestamps are produced.", "Display fields normalize known mojibake if encountered; active source lyric files should remain clean UTF-8.", "Waveform and spectrogram are generated evidence assets suitable for AI/native review." ] }