Just prior to the Second World War, Sir Adrian Boult (1889–1983) single-handedly built the BBC Symphony Orchestra into a world-renowned ensemble that attracted such artists as Arturo Toscanini, Serge Koussevitzky and Bruno Walter to conduct it. After retiring from the BBCSO in 1950, Boult became chief conductor of the London Philharmonic until 1957. The live 1975 Proms performance of Brahms’s Symphony No.4 has never been issued before. It has been recorded in stereo and fully captures the ‘Indian summer’ that Boult enjoyed at the Proms and in the studio with EMI at this time. The Mendelssohn Symphony No.4 was recorded live in stereo and has never been issued before.