John Wilson, Marcelo Bratke, Cantabile
Sean Rafferty's guests include lively young vocal ensemble Cantabile, renowned for their popular blend of classical and cabaret. They'll be performing live in the studio ahead of their week-long residency at London's Crazy Coqs club with pianist Malcolm Martineau.
Plus, live music from acclaimed Brazilian pianist Marcelo Bratke.
Also, In Tune's contribution to the BBC's 18th Century season continues with a look at the last of 12 Georgian objects at the Royal Collection with exhibition curator Desmond Shawe-Taylor.
Main headlines are at 5pm and 6pm.