Resonant Scriptorium

The Resonant Scriptorium is the official registration of Floor 117, and the administrative centre for the theoretical and archival treatment of Resonant Masonry within the Tower. It is a mid-tier floor, situated between Floor 71 and Floor 881 — a placement that the Thirtythird Concordance describes as "deliberate, though not explained." The Scriptorium does not build. It records what resonant masonry will do before it is built, and what it did after it was, and, in the years between, what it is expected to have done.

Its staff are not masons. They are transcribers of vibration, and the distinction is enforced. By the standing instruction of the office it reports to, no one at Floor 117 may strike a stone.

Internal arrangement and daily operation

The Scriptorium occupies the whole of the floor and is divided into a long reading hall and a shorter corridor of listening cells, the latter lined with absorptive plaster to a standard recording thickness. The reading hall holds the registered resonance tables: for each known stone, a certified frequency, a certified decay interval, and a note of the conditions under which both were last confirmed. These tables are consulted by the Guild of Resonant Masons before any large work, and disputes over their currency are the floor's principal source of quarrel.

Correspondence from the Scriptorium travels in Courier-Spheres whose resonances have been registered for routing by the Central Scriptorium; the Scriptorium maintains its own calibration fork for this purpose, recertified every eleventh season. The fork is kept in a felt-lined case and must not be used to open cans (Manual of Resonant Integration, Appendix 9).

Origins and the Office of the Fork

Floor 117 was assigned its resonant function in the year 8,214, the date preserved in the Vault of Resonant History. The assignment followed a request from the Scribes of the Upper Scriptorium, who had accumulated several thousand unsorted observations of stone-song and no place to put them. The observations were moved down, sorted by pitch and provenance, and thereafter kept on Floor 117 by a body that came to be known informally as the Office of the Fork.

The Office's first register, opened in 8,215, records the frequency, decay interval, and disposition of each stone — the last being a short characterisation written by the recording clerk and never removed. Entries include "steady," "unreliable after dusk," and, against a grey limestone of uncertain origin, "discontented." Later registers dropped the field, but the early volumes were never amended, and a supplementary register of dispositions remains in use on the floor, though it no longer leaves it.

The Additional Column

A dispute between the Office of the Fork and the Office of Resonant Verification has run since 8,431, when a geode certified by the latter was found to resonate eleven degrees below the figure entered on Floor 117. The Scriptorium's position, argued by the recording clerk Samuel Orme, was that the article had been catalogued from its known frequency rather than its measured one, and that the two columns had never been distinguished.

Orme's memorandum of 8,432 proposed the addition of a third column, in which the difference between the known and measured frequencies might be written. The memorandum is preserved at Floor 117 and is much cited, less often read. Its central ruling reads:

"Where a stone sounds other than as it is written, the writing shall be corrected and the stone not."

— Samuel Orme, Memorandum on the Additional Column, 8,432

The Office of Resonant Verification has never accepted the ruling, on the grounds that its own instruments are strangers to the floor and should not be asked to agree with a fork. The Resonant Geodes themselves have taken no position.

Recensions and the disputed relationship

The Scriptorium is administered under the Seventh Concordance, which resolves the addresses of the Chamber of Resonant Verity between the Librarian's Scriptorium and the Phenomenological Spire. Floor 117 disputes the reading. Its clerks hold that, on two recorded occasions, a clerk sent to the Chamber of Resonant Verity on Floor 7,491 of the Librarian's Scriptorium arrived instead at a recording room on Floor 6,208, the Chamber of Resonant Potential, and transcribed from the wrong room for four days.

The Third Concordance is cited in support of the Librarian's Scriptorium, and the Twenty-Ninth Concordance in support of the Phenomenological Spire; a minority reading, advanced by the Iconoclastic Scriptorium, argues that neither address is correct and that the Chamber of Resonant Verity has never been wherever it is written down. The floor declines to adjudicate and files all three positions together, which it considers the only defensible practice.

Relations with other scriptoria

The Scriptorium corresponds with the Echoing Scriptorium (22.J), which transcribes witnessed resonant phenomena and forwards them upward; the two exchange a bound volume each year, and a long-standing quarrel concerns the width of the binding. Its acoustically adjusted sister floor, the Scriptorium Annex, shares resources in the matter of absorptive plaster. The Scriptorium of the Fixed Ladder summons the Scriptorium's fork-keeper once each half-year for the calibration of the Tome of Fixed Points, an errand that requires two days of travel and one of waiting.

In the winter of 9,102 a shipment of calibration forks bound for the Aperture 11,908-G was misrouted through the Scriptorium and entered the reading hall while the tables were open; the resulting transcription error was corrected by hand in the following season and is the last recorded incident of its kind. A rule introduced afterwards, and still in force, forbids the bringing of struck objects into the reading hall before the tables are closed.