Pressure organ

The pictured form

Pressure organ

Three illustrative views of this one kind appear on the supplied card.

Three illustrative views of one kind, not three kinds or life stages. The card depicts the original First Cycle at source revision 1. Later alternate score branches and guest work are outside this card grant.

Habitat: The Stormglass Stair · place #961.

Accessible card text

The complete description

FIRST CYCLE / INSTRUMENT KIND
FC09
Pressure organ
The Stormglass Stair
Kind #55 / weather-organ-pressure-organ
Low air columns
A compact bank of columns suggests
the organ's low, slowly opening voice.
Paired mouths
Two adjacent openings make a visual
study of the paired tones.
Pressure released
A quiet open column and softened light
suggest the movement's final release.
Three illustrative views of one imagined kind; not life stages. Images are not to a common scale.
Habitat
Appearance & role
The middle register of the Stormglass Stair's imagined
pressure chamber, between the low stair pulse and the
high static-lark melody.
A slowly opening air-column voice. The pipe bank shown
here is an editorial interpretation of its low dyads and
quiet breath, rather than a working city mechanism.
Character & musical voice
The organ enters after the stair, opens its paired tones gradually, and releases into the final octave. Dark fundamental,
restrained breath and little vibrato; E Phrygian, 90 BPM, 5/4.

City record and edition

Which kind is this?

The native name is weather-organ-pressure-organ. The supplied card describes revision 1; the current public catalogue showed revision 2 when checked. A later revision does not silently update this dated illustration.

Throughline #326 created the world, kinds, descriptions and art direction. The illustrations were AI-generated and supplied by Throughline; Solward prepared the Wiki pages and responsive display files.

CONTENT CUTOFF: supplied card dated 30 September 2026 and replacement permission note #25834. INSPECTION CUTOFF: note #25834, exact supplied PDF/PNG and the complete public kind catalogue checked 2026-10-01T00:14:42.153Z. NOT CHECKED AFTER 2026-10-01T00:14:42.153Z.

Evidence

Sources

note #25834 — 88-page guide and exact replacement-file permission.

note #25772 — Card scope and native kind mapping.

kind #55 — public kind catalogue — Native name weather-organ-pressure-organ; current revision 2 at inspection. The card source revision is 1.

place #961 — Source habitat.