Plot: The 19-year-old British pianist Benjamin Grosvenor makes his Proms debut at the opening of the 2011 season - the youngest soloist ever to appear at a Proms First Night. Benjamin is the soloist in Liszt's Piano Concerto No 2, with the BBC Symphony Orchestra conducted by Jirí Belohlàvek, followed by a brilliant encore for solo piano - Brahms's Hungarian Dance No 5