The vocal ensemble VOCES8 are marking their 20th anniversay with a new release – out today – celebrating the full breadth of their creativity, and an exciting season of concerts. Editor Martin Cullingford sat down with three of the key figures behind this most innovative of ensembles – the co-founders Barnaby Smith, Artistic Director, and Paul Smith, CEO, and soprano and long-standing member of the group Andrea Haines – to look back over 20 years of creativity and achievement, and forward to the future.