On Sir Peter Maxwell Davies’s 80th birthday, the Proms pays tribute in a concert of works selected by the composer himself. The concert overture Ebb of Winter captures the rugged beauty of Davies’s Orkney home. We see a different side of island life in the joyous ebullience of his Orkney Wedding, with Sunrise; the virtuosic fourth Strathclyde Concerto, for clarinet and orchestra, completes the concert.