Songsilk is woven from whale baleen drawn out into fine thread and set with the whale's blood, which is the part that carries the melody. Worn against the skin, it attunes the wearer to the song the whale was singing as it died, a sadness or a triumph or a joy, or the long low call of a thing that has no word for any of them. The cloth then amplifies or dampens the wearer's own feeling to bring it into line with that song. A mourner's shawl of one weave; a war-banner of another.
The attunement is not a figure of speech. A whale's melody is emotion carried in the same Ezz-substrate that Faesong moves through, the emotional face of Ezz that Melera's own music runs along. Songsilk gathers a sliver of that resonance and binds it into something a person can wear, so the cloth holds a fragment of the same harmony a druid or a fae perceives as Faesong. It produces no force of its own. It routes an old one onto the body of whoever puts it on.