music/complete_tracks/cards/HF_MT_18_REGION_CENTRAL_AFRICA.json
{
"card_id": "HF_MT_18_REGION_CENTRAL_AFRICA",
"cue_role": "region_theme",
"cue_class": "zone_theme",
"working_title": "Central Africa — The Forest Answers",
"region": "Congo Basin (Ituri; Sangha; Gabon)",
"region_page": "_source/02_Tier_2_Region_Pages/central_africa_congo.md section 10",
"chapters_served": [
"CH_11"
],
"target_duration_s": 273,
"loop_class": "long_loop",
"in_game_loop_span_s": 273,
"bpm": 66,
"tempo_band": "T2_slow",
"key": "F major",
"modal_colour": "major, but built from a descending cascade rather than a chord -- the harmony is the overlap of voices",
"instrumentation_family": "wind_and_drum_period_band",
"instrumentation": [
"long wooden trumpet (single tone, the anchor)",
"women's and girls' overlapping chorus, throaty, cascading",
"clapped sticks in cross-rhythm",
"eight-string arched harp (the Gabon anchor; four low strings, four high)",
"drum sequence for the after-midnight section"
],
"voice_count_target": 8,
"energy_class": "E19_antiphonal_night",
"dynamic_range_target_db": 27,
"total_bars": 100,
"form": [
{
"label": "evening",
"bars": 16,
"function": "the trumpet's single tone, far off, entering and receding"
},
{
"label": "cascade",
"bars": 16,
"function": "the chorus: overlapping entries, each voice held as the next comes in, the chord swelling until breath runs out"
},
{
"label": "cutoff",
"bars": 6,
"function": "all voices stop together, sharply. Six bars of scored SILENCE for the echo."
},
{
"label": "sticks",
"bars": 16,
"function": "cross-rhythm on clapped sticks alone; the honey-season figure"
},
{
"label": "harp_path",
"bars": 20,
"function": "the arched harp takes the night's structure; low strings answer high"
},
{
"label": "after_midnight",
"bars": 20,
"function": "the drum sequence; the densest music in the region cards"
},
{
"label": "recede",
"bars": 6,
"function": "the trumpet again, quieter each bar, until the presence departs with it"
}
],
"motif_stated": [
"FAM_THE_LIVING_VOICE"
],
"motif_developed": [
"FAM_THE_OTHER_SELF"
],
"motif_operation": "the cascade is composed as literal canon at one beat; the head is never stated alone",
"distinct_motifs": 5,
"anti_tiling": "Six scored bars of SILENCE at the cutoff, listening for the environment's reply. The listening-for-the-echo gesture is the region's musical signature and the page says so; it cannot be tiled because it is the absence between two sections.",
"laws": [
"KONDO FORM-01",
"KONDO FORM-02",
"SNES AFF-05",
"SNES LOOP-05",
"SNES ECON-08"
],
"canon_refs": [
"_source/02_Tier_2_Region_Pages/central_africa_congo.md section 10 [SRC_00253 p.79, p.83, p.171-172, p.243; SRC_00179 p.590, p.515]"
],
"care_notes": "Reference register throughout. No ceremony is reproduced, no ritual text set, and no consecrated performance sampled. The harp is scored as an instrument; its attested identity as a body is design context and is not staged as spectacle.",
"substrate_confidence": "strong -- the vocal technique is described precisely enough to compose from, and the page says so in those words.",
"reveal_gate": "NONE",
"interactive_hook": null,
"short_loop_justification": 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": [
64,
79
],
"instrumentation_family_meaning": "a per-culture period band of winds and drums, at reference register.",
"energy_class_meaning": "voices and instruments answering across a space, with the reply itself scored as silence.",
"time_signature": "6/8",
"beats_per_bar_quarter_equivalents": 3,
"bar_seconds": 2.7273,
"_duration_is_derived": "total_bars x beats_per_bar x 60 / bpm -- not hand-declared",
"target_duration_mmss": "4:33",
"form_summary": "evening(16) - cascade(16) - cutoff(6) - sticks(16) - harp_path(20) - after_midnight(20) - recede(6)",
"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": false,
"missing_classes": [
"per-culture period instruments",
"percussion"
],
"sourcing_action": "Wave-two entry condition: extend the sfz stack with CC0 / public-domain percussion, choir and period sample sets, recorded in docs/licence_records/ with the same hash discipline as the landed stack. No sample from any set is ever a conditioning, fine-tune or LoRA input to any generator.",
"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": 18
}