Sirens
Sirens are not simply singers with magic. They are resonant half-living forms in which Memory behaves like an echo, Function becomes attraction and Will dissolves into the song that gives them continuity.
When the Song Is the Self
The Great Cycle classifies sirens as half-living beings born from elemental resonance. Their Body is only partial, their Time conditional, their Memory resonant rather than fully personal, and their Function is attraction. Most importantly, formal Will is absent: it is said to dissolve into the song. This makes the usual question - 'Who is singing?' - unstable. A siren is less a person who happens to possess a supernatural voice than a voice that has learned to occupy enough form to act in the world.
Resonant Memory changes what continuity means. A human remembers an event because it happened to a bounded self. A siren can preserve pattern through repetition: pitch, rhythm, response, the return of a refrain across different bodies or storms. What survives may therefore be more like a melody than an autobiography. This does not make sirens mindless. It makes their identity difficult to isolate from performance. If the song changes, has the siren learned, or has another siren begun? The source refuses to grant the same kind of Will humans possess, which means the answer cannot be assumed from outward intelligence alone.
The Federation of Storm Cities turns this ambiguous life into state power. Its fleets hire singer-sirens alongside storm mages; the rare Song of Nine Storms combines sirens and storm-callers to produce a tempest capable of destroying fleets. Elsewhere the Federation's religion is described as personal contracts between captains and the Storm, administered through autonomous shipboard altars and sacred navigators. Sirens fit this maritime world because both politics and magic are organized through currents, agreements and collective performance rather than centralized command. A hired siren is simultaneously mercenary, ritual component and living resonance.
That last fact creates an unresolved problem. The source calls sirens mercenaries and also denies them independent Will. The contradiction may be linguistic - perhaps a contract binds the song rather than a human-like chooser - or it may reveal the limits of the taxonomy. The Codex should not solve this by silently giving sirens human personhood. It should preserve the stranger possibility: a being can negotiate, attract, remember through resonance and still belong to a mode of existence in which the song, not the singer, is the durable subject.