For Cosmos, Fernando “Murcof” Corona composed a symphony for space travel, and its loneliness and hallucinated illusions. The Mexican experimental vet focuses on the stars, using his usual craft of digitally sculpted orchestral sounds and drones. But it’s the deep spaces of silence between every note that make him remarkable. Corona’s orchestral work ranges from Romanticist flourishes to melodramatic dirges that recall straight-to-video science fiction. The delicate piano interplay of “Cometa” is fine jazz for the spheres, and “Cielo” builds a sharp tension in its duel between a sputtering rhythm and string melody that swoops down like vultures. At its best, Cosmos evokes the melancholy of passing extraordinary sights in an otherwise muted galaxy.