Harmonic Integration

Harmonic Integration is the practice of bringing a subject into settled relation with the ambient tonal conditions of a given floor, such that the subject and the floor are thereafter said to "agree." It is distinguished from Integration with Annexes and from Vertical Integration chiefly by the fact that nothing is moved. Where other integrations relocate, reshelve, or reclassify a subject, Harmonic Integration leaves it exactly where it stands and alters the floor's tolerance instead. The practice is governed in its standards by the Directorate of Concordant Integration and carried out, floor by floor, under the standing provisions of Integration Directive 14 Lumen, which fixed the present form of the Integration Phase and, with it, the Sensory Integration Profile by which a floor's ambient conditions are measured and certified.

The governing assumption

The doctrine rests on a claim first set out in the Manual of Resonant Integration, which holds that Resonant Integration acts upon subjects while harmonic work acts upon the relation between subject and floor, and that the two are therefore not to be performed on the same afternoon. The Bureau of Pre-Integration has never accepted this distinction and requires Form 88-C for both, a duplication that has been raised at least nine times and set aside at least nine times.

"A floor is not a room and a subject is not furniture; the one hums and the other does not, and the whole of the work lies in the difference."

— Manual of Resonant Integration, preamble to Part III

The phrase "the floor hums" is technical. Every floor of the Tower carries a measurable standing tone, recorded by the Harmonic Gauge and logged against the floor's number in the Harmonic Register. Floors whose tones fall within three degrees of one another are said to be conversant and may share a subject without adjustment. All others require harmonic work before a subject may be catalogued on them. This is why a book recovered from a conversant floor can be filed in an afternoon, and why the same book from a non-conversant floor may sit in the corridor for a season.

The 40th Floor incident

The practice acquired its present caution after the winter of the 40th Floor, when a clerk of the Bureau of Cyclical Integration named Osric Vell attempted to harmonize a consignment of eleven brass tuning plates by ear, without a gauge reading, on the reasoning that the floor's tone was "obvious." It was not obvious. The plates were certified at 3 degrees against a floor that had recently shifted to 17, and the resulting disagreement propagated upward through four adjacent floors before the Harmonic Integrity Review intervened. The plates were removed to the Harmonic Void and have not been re-entered. Vell was reassigned to the gauge desk, where he remained for nineteen years and where his marginal notes on the incident are still consulted.

Since that winter, no harmonic work may be certified without a fresh gauge reading taken on the same day, and no reading may be taken by the clerk who intends to certify it. The rule is printed on the reverse of every gauge card, in the same size as the reading itself.

Procedure and the question of consent

Harmonic Integration proceeds through the Integration Phase as administered by the Integration Committee, which conducts the entry itself and authorizes the Concordant Resolution required wherever a subject is entered with annexes. The subject is tuned — or, in the case of subjects that cannot be tuned, is assigned a proxy object of equivalent mass and tonal character, which is tuned in its place and stored beside it. Proxy tuning is permitted but must be declared on the entry card, and the proxy must remain with the subject for no fewer than forty days.

Scholars disagree sharply on whether the subject's agreement is required. The Manual of Vertical Integration treats agreement as a formality completed by the floor, holding that Final Integration completes the sequence begun at Vertical Integration and that a subject already integrated has, by that fact, agreed to everything downstream. Against this, the Manual of Resonant Integration and its commentators maintain that harmonic agreement is a property of the subject and cannot be conferred by the floor, however senior. The Directorate of Concordant Integration has declined to resolve the question and instead issues broad Integration Directives that satisfy neither reading, a course the Integration Committee has described in its minutes as "stable."

Contradiction in the Concordances

The contradiction is not merely scholarly. Third Concordance, Annex 4, provides that a harmonized subject "shall be deemed to have occupied its floor from the hour of its making," which retroactively exempts it from every fee assessed between its arrival and its tuning. Ninth Concordance, Article 12, provides that no subject may be deemed to have occupied a floor before the gauge was read. The two cannot both hold, and both are cited daily. The Bureau of Pre-Integration collects the fees under the Ninth and refunds them under the Third, and has done so since the fee schedule was last revised; the refund ledger is now longer than the assessment ledger and is kept in a separate stairwell for reasons of weight.

Practical notes

Harmonic work is not permitted on floors numbered in the negative range, on the ground that their tones have never been certified and the Directorate will not certify a tone it cannot hear twice. Clerks assigned to such floors are issued cotton wadding and a written instruction to record nothing.

The Mandate of Integration requires that every harmonized entry carry the gauge reading, the certifying clerk's mark, and the date of tuning in that order. Entries carrying them in any other order are returned unopened. Harmonic Reshelving is a separate practice and is not to be confused with harmonic integration, though the two share a gauge and, frequently, a clerk.