The first album in The King’s Singers’ Head Space series, aims to connect choral music with calmness and reflection. Inspired by compline, the Catholic night service, it features plainchant, including “In manus tuas Domine” and “Salva nos Domine vigilantes,” emphasizing breath-led pacing. The album also includes four of Orlando Gibbons’s wordless song settings (two of which include an additional voice …