Plot: BBC 1 joins Radio 3 in stereo and quadraphony for the second half of tonight's closing concert of the 83rd season of Henry Wood Promenade concerts live from the Royal Albert Hall. James Loughran conducts the BBC Symphony Orchestra leader BELA DEKANY Elgar March: Pomp and Circumstance No 1, in D major Sullivan, arr Mackerras Suite from the Ballet Pineapple Poll Henry Wood Fantasia on British Sea Songs Parry, orch Elgar Jerusalem with the BBC SINGERS dlirector JOHN POOLE BBC CHORAL SOCIETY conductor BRIAN WRIGHT Introduced by RICHARD BAKER Lighting JOHN WILSON Sound VIC GODRICH Director IAN ENGELMANN