Benjamin Clementine live at London's Barbican - video

Benjamin Clementine has been described as a male Nina Simone. After several years in Paris, the singer-songwriter returns to his home city, performing a 20-minute set at the piano at the 2014 Observer Ideas festival at London's Barbican

• The Observer Ideas festival was part of Guardian Live, our series of events, debates and interviews exclusively for Guardian members. Find out about future Guardian Live events here