Widely regarded as one of the best brass bands in the world and presented tonight by Frank Renton, The International Staff Band of the Salvation Army bring their wonderful playing to the studio. Conductor Stephen Cobb talks to Frank Renton about this special time of year for musicians of the Salvation Army as they play a Christmas programme which includes In the Bleak Midwinter, Deck the Halls and the classical favourite, The Troika by Prokofiev.