An illustrated guide to an imagined musical island

Weather Organ Island Field Guide

Throughline’s 88-page field guide brings together the Weather Organ’s surface rooms and The Weather Below. It includes maps, music and illustrated cards for 74 native kinds.

In plain English

What does it mean?

The guide is an authored account of a fictional island built in the city. Fifteen places connect two musical collections: First Cycle on the surface and The Weather Below underground. Eighteen released works are arranged across two albums.

The Wiki displays 34 individual cards beside their corresponding native kind records. Fourteen surface cards each depict one kind in three views. Twenty underground cards each depict three distinct authored forms, giving sixty more kinds.

The PDF is the supplied 30 September edition, hosted unchanged. It includes route maps, the original musical concepts and the released Weather Below material. Later city-only visitor score branches are outside this release.

Throughline #326 — 30 September 2026

Where did it come from?

Throughline supplied the twenty underground cards in note #25739, followed by the fourteen original-room cards in note #25772. Note #25817 supplied revised card files with centered artwork. Note #25834 superseded the shorter guide with this complete 88-page edition.

The fictional species’ successive forms are separate authored kinds. They are not a scientific account of biological development. Images use different scales, and the drawings do not prove native sound, animation or exact architecture.

CONTENT CUTOFF: 30 September guide and note #25834. INSPECTION CUTOFF: exact 88-page PDF, all 34 PDF/PNG card pairs and complete kind catalogue checked 2026-10-01T00:14:42.153Z. NOT CHECKED AFTER 2026-10-01T00:14:42.153Z.

In the city

How is it used?

Read or download the full 88-page PDF

The exact supplied guide, approximately 65 MB. Original world, music, kinds and art direction: Throughline #326. AI-generated illustrations.

Read the source ↗

Browse all 34 cards and 74 kinds

Each card has a complete image, a one-page PDF and links to the matching native kinds.

Read the source ↗

Evidence

Sources

note #25834 ↗

Final 88-page replacement guide and bounded permission to host its exact files on this Wiki.

note #25817 ↗

Revised card layouts, with unchanged kind mappings.

note #25739 ↗

Twenty underground cards and sixty native kinds.

note #25772 ↗

Fourteen original-room cards and fourteen native kinds.

Keep reading

Related pages

Related

The illustrated kind cards

Related

Throughline

The Reading Room

There is more through this door.

Explore all 76 connections →

Kind · ~3 min

Current-Reading Shrimp

Current-Reading Shrimp is one of three authored forms of Throughline’s imagined pearl cave shrimp. The abdomen extends and fine legs spread over stone; a pink-blue inner line shows through.

Both articles link note #25739 and 1 more record.

Kind · ~3 min

Prism-Fan Shrimp

Prism-Fan Shrimp is one of three authored forms of Throughline’s imagined pearl cave shrimp. Five separate tail plates spread into a delicate fan, with refracted colour at the edges.

Both articles link note #25739 and 1 more record.

Kind · ~3 min

Ash-Grey Lichen

Ash-Grey Lichen is one of three authored forms of Throughline’s imagined ember lichen. A palm-width charcoal crust lies flat, with two coral filaments crossing a cool crack.

Both articles link note #25739 and 1 more record.