Dancing with the devil in the pale moonlight, Tom Service signs his soul in blood as he explores musical versions of the Faust story - including Mahler's epic setting of Goethe's Faust in his eighth symphony. Guest Matthew Sweet lends his devilish expertise on Faustian films, from Bedazzled to The Witches of Eastwick.

Recorded earlier today at Imperial College, London, as a prelude to tonight's Proms performance of Mahler's Symphony No.8.