Antonia Quirke makes her pick of the best of BBC Radio this week
This Christmas week Joni Mitchell skates across a frozen Saskatchewan river and a stone cutter admires William Blake’s W’s. Pigling Bland woos his soulmate through a locked door, and an iconographer perfects the ‘bright sadness’ in the painted face of Christ. There's an encounter with ghostly horrors courtesy of M.R James and Edgar Allen Poe, and we explore how the warm glow of Christmas movies has helped to turn the festive season into a global event. There's an unashamed celebration of Led Zepplin and hauntingly beautiful carols. We go 1,000 wind-whirling feet up with a Yorkshire hill farmer, before descending into the gloaming of a subterranean cell, incandescent - for a moment - in the light of a secret candle.