Plot: The BBC Proms 2017 season comes to a close with the BBC Symphony Orchestra and their Finnish chief conductor Sakari Oramo leading proceedings live from London's Royal Albert Hall. Soprano superstar Nina Stemme performs music from Wagner's Tristan and Isolde, the BBC Symphony Chorus and BBC Singers mark 100 years of Finnish independence with a performance of Sibelius's glorious Finlandia and Kodaly's Budavari Te Deum is performed by soprano Lucy Crowe, mezzo Christine Rice, tenor Ben Johnson and bass John Relyea