Suburban St. Petersburg unit Delicate Features make sorrowful, mysterious music stitched from a strange symbiosis of trip-hop, new age, medieval lament, and Russian poetics. Sky of Earth expands on the endless steppe meditations of 2014’s The Passenger, sweeping wider and sinking deeper. The album’s 11 excursions into ambient reverie, Eastern bloc Enigma, funereal folk, and devotional electronics share a mood of solitude and contemplation, landscapes disappearing in dusk, plagued by memory.