Sacred and earthly meet in John Casken’s music, and always on the edge of an ‘uncertain sea’. Northumberland’s littoral is his natural territory and a key element of the music here is a new setting of Caedmon’s Hymn, the herder-turned-poet, a forerunner of the other metaphysicians – George Herbert, Gerard Manley Hopkins, the contemporary Katrina Porteous – who provide texts. Beautifully sung by a well-named choir, the individual pieces include a version of Herbert’s Prayer, the archetypal ‘reinvented poem’, which turns out to be a perfect simulacrum of Casken’s dense, unresolved music. ‘Dappled Things’, after Hopkins, was birthday gift to James MacMillan, a former student. Glorious music, all of it.