Yamila Rios is a kind of sound vessel — a composer, singer, and cellist who has the ability to conjure ethereal beauty in multiple contexts, carving out a space where gauzy textures, elegant melodic gestures, an almost subversive rhythmic presence, and trippy incantations mingle, collide, and pull apart. While she makes drifty, ambient pop as Yamila, she’s also been actively collaborating with choreographers and dance companies. Despite placid surfaces, her music pulses with movement. Splitting her time between Madrid, in her native Spain, and Brussels, Belgium, Yamila has found strong collaborators in the Echo Collective, whose founding duo — violinist Margaret Hermant and violist Neil Leiter — has established it as one of the go-to string ensembles in…