The BBC National Orchestra of Wales under Ryan Wigglesworth, with pianist Joanna MacGregor. Elgar's 'In the South (Alassio)'; Hugh Wood's Concerto for Piano; Ravel's 'Une barque sur l'océan'; Debussy's 'La cathédrale engloutie' (orch Henry Wood); and 'La mer'. (Note: Thierry Fischer is unwell. At 5pm there is a Proms Plus event at the Royal College of Music.)