When this collaboration between Alela Diane and her touring companion Alina Hardin opens with ‘Amidst the Movement’, one of Diane’s trademark gutsy folk songs that defies you not to join in with its sing-along chorus, it’s easy to think this EP is merely a supplement to her well-received album To Be Still. It soon becomes clear, however, that this offering is much more than that – it is a master-class in the sublimely simple beauty of classic folk music, delivered by two equally impressive songbirds.