Sara Mohr-Pietsch meets digital vocal group Accent and conductor Karen Gibson.
Sara Mohr-Pietsch presents Radio 3's weekly celebration of singing together.
Live from Voices Now 2015, a festival of singing at London's Roundhouse.
Sara Mohr-Pietsch is joined by actor Vanessa Redgrave, who discusses her choral favourites
Sara Mohr-Pietsch explores choral music related to dance.