AI-generated conjecture · a wager, not a finding
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The office survives as a torso
Status is derived only from the shepherd-authored triage/prediction data above -- community submissions and claims are a separate overlay and can never change it (see the participation panel below).
Claim (verbatim)
Even where a saint's proper office does survive with music, it usually survives incomplete. A full secular office is a large machine - first Vespers antiphons, the Matins invitatory and its nocturns of antiphons and great responsories, Lauds antiphons, second Vespers - on the order of thirty proper items sung across a single feast. But offices reach us through the accidents of book survival, and a lost quire, a trimmed margin, or a single surviving partial copy leaves a historia represented by a fraction of its items. The mechanism is that the office was distributed across the physical book in vulnerable places - the outer and final leaves of sanctorale sections, the parts a binder trims and a rebinding loses - and no institution had a motive to reassemble a suppressed or demoted cult's full office from scattered witnesses. So a proper office in the databases is typically a torso: a few antiphons and one or two responsories standing for a whole dismembered liturgy. Prediction restated: among saints' proper offices present at all in the Cantus Database, the median number of surviving proper items is well under half the roughly thirty of a complete secular cursus, and a large share survive as fewer than a third of their original items.
Prediction clause (verbatim)
Prediction: among saints' proper offices that appear at all in the Cantus Database, the median count of distinct surviving proper items is under half of the roughly thirty items of a complete secular office cursus, and at least a third of these offices survive as fewer than ten distinct items (primary clause: the sub-half median completeness against the roughly 30-item cursus; the verdict follows it). Completeness is scored on distinct proper items indexed for the feast across all sources, not per single manuscript; coverage guard: pooling every indexed witness of a feast can only raise measured completeness, so the median is an upper bound on true per-office survival, and the test voids if fewer than 100 proper offices are indexed.
Kill-dataset (verbatim)
Kill: the Cantus Database full-source office inventories, counting distinct proper items indexed per saint's office and comparing the distribution against the roughly thirty-item complete secular cursus; the operation is an items-per-office completeness distribution.
Nobody has run this test. The kill-data is named above. If you can run it — or you know the paper that already settles it — claim the kill or submit the prior scholarship. Kills and prior scholarship are credited here, by name, as they come in.
Provenance
Run: Fresh agent generation · model: claude-fable-5
Fresh blind generation by claude-fable-5, 2026-07-17, liturgical-chant wave on CANTUS/Cantus Index, Corpus Troporum, and Analecta Hymnica/Chevalier. Every Kill names a real chant instrument and a countable census or inventory-geometric operation - transcribable-to-total ratios, source-count geometry, singleton (unica) fractions, catalogue-to-melody survival ratios, feast-rank concordance-breadth gradients, contraction ratios, and text-to-melody attestation lags - with thresholds far from 1 and explicit coverage guards distinguishing what the databases index from what existed. Operation family kept DISJOINT from the owned w09 music_liturgy ground (which joins chant metadata to external economic/material datasets: freight, wax, plague, mints, fairs, necrologies) and from the w08 chant cluster (variant-rate, melodic dialect, differentia decline, lesson-length, copying-error forensics). 0 items dropped; deliberately steered clear of w08-039 (Old Hispanic copying-error profile), w08-001/003 (feast-age variant rate / differentia), w09-026 (Old Roman property network), w09-016/035 (trope economics/prosopography), and w09-022 (sequence fair-network) by using pure census/inventory-geometry operations on the named instruments. Confidence flags on exact counts recorded in the register report. Slugs via django slugify.
Novelty / leakage triage
anticipated in the literature — this exact test has never been run
Fragmentary survival of historiae is noted throughout the editions literature, and LMLO tabulates office contents office by office; but the distribution of distinct surviving proper items per office across the Cantus-indexed corpus - the sub-half median against the roughly thirty-item secular cursus, and the under-ten-item third - has not been computed in print. It is exactly the per-office completeness arithmetic the pooled instruments now permit and no one has run.
- A. Hughes, Late Medieval Liturgical Offices: Resources for Electronic Research, 2 vols (Toronto, 1994-1996)
- R. Jonsson, Historia: Etudes sur la genese des offices versifies (Stockholm, 1968)
- D. Hiley, Western Plainchant: A Handbook (Oxford, 1993), on the structure of the secular office
Predictions
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