The Silver Tree

Lisa Gerrard’s first solo non-soundtrack album in over a decade since The Mirror Pool, 2006’s The Silver Tree found her in a vivid creative space, exploring further sonic and linguistic possibilities with her voice and again showcasing rich, mood-shrouded music pitched somewhere between mournful classical, dark ambient and even, on “Space Weaver,” something trip-hop tinged. Regular collaborator Patrick Cassidy provides some orchestrations, as on “In Exile” and “Toward the Tower,” but otherwise it’s all Gerrard’s work, elegant and powerful.