VOCES8 looks toward home for a breathtaking journey around the British Isles with music that crosses boundaries of both geography and musical genre. The breadth on offer is staggering: Radiohead’s anthemic “Pyramid Song” emerges as a new choral classic and Clannad’s “Theme from Harry’s Game” is haunting in its newly crafted harmonic richness. But the ensemble reaches back, too—a once-lost folk song from the abandoned island of St Kilda (“Soay”) adds mystery, while Tavener’s “Song for Athene,” perhaps best-known from the funeral service of Diana, Princess of Wales, is a throwback to 1997 and a nation in grief. And the original works by British and American composers are simply ravishing. There’s passion and conviction here, and a choral blend that carries each note skyward.