The musicians have gathered - what will be on the concert programme?
Roy Plomley's castaway is French horn player Dennis Brain
Roy Plomley's castaway is trumpeter Philip Jones
Roy Plomley's castaway is clarinettist Jack Brymer
Roy Plomley's castaway is flautist James Galway
Sue Lawley's castaway is percussionist Evelyn Glennie
Roy Plomley's castaway is harpist Marisa Robles
Roy Plomley's castaway is cellist Jacqueline Du Pr茅
Kirsty Young's castaway is the violinist Gyorgy Pauk.
Roy Plomley's castaway is harpsichordist Igor Kipnis
Sue Lawley's castaway is organist Wayne Marshall
Sue Lawley's castaway is composer and conductor Andr茅 Previn
Musician and comedian Tim Minchin is interviewed by Kirsty Young.