Gareth's eight novice singers have been stretched to their limits by a gruelling rehearsal schedule amid their own personal challenges, including a breast cancer diagnosis and a recent bereavement. Now, they put on a glorious performance alongside the BBC National Orchestra, the Chorus of Wales and four leading professional soloists at Cardiff's Llandaff Cathedral.As an extra surprise, one of Gareth's new singers, Rosie, is offered the chance to perform an inspiring solo piece.