music/complete_tracks/cards/HF_MT_04_BOSS_CHAPTER.json
{
"card_id": "HF_MT_04_BOSS_CHAPTER",
"cue_role": "boss_chapter_tier",
"cue_class": "combat_loop",
"working_title": "The Thing That Was Waiting",
"chapters_served": [
"CH_02",
"CH_04",
"CH_05",
"CH_11"
],
"target_duration_s": 209,
"loop_class": "short_loop_composed_seam",
"in_game_loop_span_s": 44,
"bpm": 138,
"tempo_band": "T5_brisk",
"key": "C phrygian",
"modal_colour": "Phrygian; the flat-2 is the boss colour and appears nowhere else in the roster",
"instrumentation_family": "low_brass_and_organ_weight",
"instrumentation": [
"trombones a3",
"tuba",
"contrabassoon",
"organ (quiet stops, then full)",
"contrabass",
"bass drum",
"tam-tam"
],
"voice_count_target": 7,
"energy_class": "E13_menacing_weight",
"dynamic_range_target_db": 22,
"total_bars": 96,
"form": [
{
"label": "approach",
"bars": 12,
"function": "organ alone on a held flat-2; nothing else sounds"
},
{
"label": "A",
"bars": 16,
"function": "trombone head in unison, no harmony -- mass, not chords"
},
{
"label": "B",
"bars": 16,
"function": "the head against itself at half speed in the tuba (augmentation over statement)"
},
{
"label": "phase_break",
"bars": 8,
"function": "everything stops but the bass drum; the boss changes phase here"
},
{
"label": "A_prime",
"bars": 16,
"function": "organ full; the head harmonised for the first time"
},
{
"label": "development",
"bars": 20,
"function": "the head inverted, then fragmented to three notes"
},
{
"label": "turnaround",
"bars": 8,
"function": "composed seam, weakened cadence -- flat-2 resolving down, never a PAC"
}
],
"motif_stated": [],
"motif_developed": [
"FAM_THE_DEEP_WATER"
],
"motif_operation": "augmentation and inversion of the serpent family head",
"distinct_motifs": 4,
"anti_tiling": "Phase_break exists so no two adjacent sections share a texture. A_prime differs from A by harmonisation, which is the one variation LOOP-04 does not permit between REPEATS -- it is permitted here because A_prime is a new section, and the section map says so.",
"laws": [
"SNES LOOP-01",
"SNES LOOP-03",
"KONDO FORM-01",
"KONDO FORM-02",
"KONDO PHRASE-05"
],
"canon_refs": [
"T0_Boss_Encounter_Registry",
"docs/proposals/music/LEITMOTIF_ARCHITECTURE.md section 2"
],
"care_notes": "The darkening operations travel with the ANTAGONIST material, never with a place. This cue carries no region register of any kind, in any chapter it serves.",
"substrate_confidence": "full",
"reveal_gate": "NONE",
"short_loop_justification": "Boss phases are 30-60 s of play; the 44 s span covers one phase and the phase_break is the composed transition between them.",
"region": null,
"region_page": null,
"interactive_hook": null,
"_doc": "A per-track IDENTITY CARD. It says what the track IS on the axes a listener hears in the first four seconds, so that no two tracks in the roster read as the same track. Consumed by the composition lane; scored against build/audio/complete_tracks/SAMENESS_BASELINE.md.",
"_emitter": "harness/music_gen/emit_identity_cards.py",
"_ruling_served": "Josh 2026-08-05 -- 12 to 20 complete tracks with real orchestral complexity, not one 30-second texture fifteen times.",
"tempo_band_range_bpm": [
120,
143
],
"instrumentation_family_meaning": "trombones, tuba and organ as an institutional weight register.",
"energy_class_meaning": "slow-moving mass; threat by inevitability rather than speed.",
"time_signature": "5/4",
"beats_per_bar_quarter_equivalents": 5,
"bar_seconds": 2.1739,
"_duration_is_derived": "total_bars x beats_per_bar x 60 / bpm -- not hand-declared",
"target_duration_mmss": "3:29",
"form_summary": "approach(12) - A(16) - B(16) - phase_break(8) - A_prime(16) - development(20) - turnaround(8)",
"section_count": 7,
"loop_point_cadence": "weakened -- half cadence or a bVII substitution, never a perfect authentic cadence (KONDO PHRASE-05, the anti-fatigue law)",
"stack_coverage": {
"current_stack": "sfizz 1.2.3 + VSCO2-CE + VCSL (23 instruments, CC0; CPU render)",
"renderable_today": true,
"missing_classes": [],
"sourcing_action": "none -- the landed stack covers this card.",
"honest_note": "The shipped cohort's 'one instrument set' is PARTLY a stack constraint: the landed 23 instruments contain no percussion, no choir, no trumpet, no tuba and no period instrument. A card that names them is naming what has to be acquired, not claiming it exists."
},
"order": 4
}