Cecilia McDowall is one of Britain’s most acclaimed composers. Her choral music, in particular, has earned her a worldwide reputation, yet an equally distinctive voice is revealed in her organ works. The O Antiphon Sequence, commissioned by the American Guild of Organists, is capricious, meditative and luminous. McDowall’s mastery of the miniature form is demonstrated in her contribution to a project to finish Bach’s incomplete Orgelbüchlein.