music/complete_tracks/cards/HF_MT_17_REGION_ETHIOPIA.json
{
"card_id": "HF_MT_17_REGION_ETHIOPIA",
"cue_role": "region_theme",
"cue_class": "zone_theme",
"working_title": "Ethiopia — Instruments That Scarcely Changed",
"region": "Ethiopian Highlands (Aksum, Lalibela, Simien)",
"region_page": "_source/02_Tier_2_Region_Pages/ethiopia.md section 10",
"chapters_served": [
"CH_09"
],
"target_duration_s": 294,
"loop_class": "long_loop",
"in_game_loop_span_s": 294,
"bpm": 76,
"tempo_band": "T2_slow",
"key": "a four-mode system, reference-composed",
"modal_colour": "one of the traditional modal groups per section; the track passes through three of them",
"instrumentation_family": "plucked_and_struck_period_ensemble",
"instrumentation": [
"large floor harp, 8-10 strings (the low drone-and-melody carrier)",
"six-string bowl lyre",
"one-string fiddle",
"sistra (shaken metal)",
"prayer-staffs struck on stone",
"large frame drum"
],
"voice_count_target": 6,
"energy_class": "E06_nocturnal_ritual",
"dynamic_range_target_db": 23,
"total_bars": 124,
"form": [
{
"label": "harp_alone",
"bars": 20,
"function": "the floor harp; slow, buzzing, one pitch per two bars"
},
{
"label": "A",
"bars": 20,
"function": "the lyre states the head against the harp's drone"
},
{
"label": "procession",
"bars": 24,
"function": "staffs and sistra enter; the pulse is walking, not dancing"
},
{
"label": "B",
"bars": 20,
"function": "the fiddle takes the head; the mode changes under it"
},
{
"label": "minstrel",
"bars": 16,
"function": "the fiddle alone, rubato -- the one free-time section"
},
{
"label": "C",
"bars": 16,
"function": "all six, the only tutti; third mode"
},
{
"label": "turnaround",
"bars": 8,
"function": "back to the harp, mid-phrase; the drone never resolved so nothing closes"
}
],
"motif_stated": [
"FAM_THE_MADE_PLACE"
],
"motif_developed": [
"FAM_THE_SUBSTRATE"
],
"motif_operation": "mode migration across three modal groups; the interval spine survives all three",
"distinct_motifs": 4,
"anti_tiling": "Three different modal collections inside one track, and a rubato section with no pulse. The interval spine is the invariant (LEIT-03) and everything else moves.",
"laws": [
"SNES LEIT-03",
"SNES AFF-05",
"KONDO FORM-01",
"KONDO FORM-05"
],
"canon_refs": [
"_source/02_Tier_2_Region_Pages/ethiopia.md section 10 [SRC_00254 p.13, p.96]"
],
"care_notes": "Reference register. No liturgical chant is set or reproduced, and no consecrated procession is sampled. The instruments are named on the card in their generic organological form so a builder sources or models them rather than lifting a recording.",
"substrate_confidence": "strong -- the record supplies the vernacular instrument vocabulary directly and glosses each term, including string counts and construction.",
"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": "per-culture plucked and struck idiophones/chordophones -- metallophones, harps, lyres, zithers.",
"energy_class_meaning": "slow-burning night music that grows more serious toward morning.",
"time_signature": "6/8",
"beats_per_bar_quarter_equivalents": 3,
"bar_seconds": 2.3684,
"_duration_is_derived": "total_bars x beats_per_bar x 60 / bpm -- not hand-declared",
"target_duration_mmss": "4:54",
"form_summary": "harp_alone(20) - A(20) - procession(24) - B(20) - minstrel(16) - C(16) - 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": false,
"missing_classes": [
"per-culture period instruments"
],
"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": 17
}