Referencing Sunken Choir — The Sacred Ledger

Bureau of Orison
Song is for halls; Orison is for war
The field name and fighting face of the Bureau of Orison and Song: licensed breath, saint-dust broadcast, acoustic countermeasure, and silence made jurisdiction.
Codex Ref. VIII.6.02-001
Bureau of War Instrument 44-K
The word is voluntary. The collar is iron.
Instrument 44-K classifies the Sunken Choir's boys as "Liturgical Combatants, Voluntary" and licenses Line deployment. Mercy's objection enters the file; the cohort returns underground.
Codex Ref. XIII.1.44-001
Choir-Engines
The Creator grants the miracle; the singer pays for it
The Sunken Choir, Processional Arsenal and Chorus Absolvers turn sanctioned prayer into siege work under Orison's War Directorate. The Creator grants the miracle; the singers pay in hearing, throats, lungs and years.
Codex Ref. XIII.1.32-001
Chorus Absolvers
Elite. Bound. Sung until the relic burns.
The Chorus Absolvers are Orison's Elite choir in chains: chest-mounted vox-relics broadcast hymns that rattle teeth and rupture lungs until the relics burn. The Bureau calls the cost proportionate.
Codex Ref. VIII.5.12-613
Hymn-Drive
The Line orders more engines; Essen runs short of throats
Synodal siege engines join prescribed song, hymnsteel housings and mechanical works. Essen supplies the calibrated casings; the Line supplies the demand. Origin remains unfiled, and tripled output awaits sufficient throats.
Codex Ref. XIII.1.93-002
Mainz
The Rhine city where tolls, bells, and throats keep accounts
Mainz is the Synod's Rhine throat: a bridge-toll city of Augustinus, Hildegarde, Severian, cracked bells, obedient ledgers, and cages that still hum.
Codex Ref. II.2.02-003
Miracles and Sorcery
Both crack Creation; only the paperwork differs
The Bureau insists miracles and sorcery are opposites. The mechanism, as Drax reluctantly confirms, is identical. The source determines canonisation or burning. The paperwork is different. The world pays either way.
Codex Ref. VI.3.01-001