This Prom has five different choruses, which is pretty remarkable even for the Proms.
In this interval feature we gather together three of the chorus masters of tonight's concert to talk about the art of the chorus master.
This is a job which requires going along to many rehearsals on wet Tuesday nights and putting up with some terrible attendances and unmusical politics. Then, after all the hard work, when the choir is drilled to perfection, in comes the star conductor and takes the glory. Is it tricky? We ask them.