The following year, the orchestra celebrated its 21st birthday, giving a series of concerts at the Festival Hall and the Albert Hall in which Boult was joined by guest conductors including Paul Kletzki, Jean Martinon, Hans Schmidt-Isserstedt, Georg Solti, Walter Susskind and Vaughan Williams.Mitchell, Donald. "Promenade Concerts", The Musical Times, October 1953, p. 472. In 1956 the LPO toured the Soviet Union, the first British orchestra to do so; the conductors were Boult, Anatole Fistoulari and George Hurst, and the soloists were Alfredo Campoli and Moura Lympany.Pepper, Maurice. "The London Philharmonic Orchestra in Russia", The Musical Times, February 1957, pp. 67–69. After the tour Boult retired as principal conductor, but remained closely associated with the orchestra, and was made its President in 1965. Most of his stereophonic recordings for EMI were made with the LPO.Simeone and Mundy, pp. 81–96; and Pirouet, p. 116.
The following year, the orchestra celebrated its 21st birthday, giving a se.ries of concerts at the Festival Hall and the Albert Hall in which Boult was joined by guest conductors including Paul Kletzki, Jean Martinon, Hans Schmidt-Isserstedt, Georg Solti, Walter Susskind and Vaughan Williams.Mitchell, Donald. "Promenade Concerts", The Musical Times, October 1953, p. 472. In 1956 the LPO toured the Soviet Union, the first British orchestra to do so; the conductors were Boult, Anatole Fistoulari and George Hurst, and the soloists were Alfredo Campoli and Moura Lympany.Pepper, Maurice. "The London Philharmonic Orchestra in Russia", The Musical Times, February 1957, pp. 67–69. After the tour Boult retired as principal conductor, but remained closely associated with the orchestra, and was made its President in 1965 Most of his stereophonic recordings for EMI were made with the LPO.Simeone and Mundy, pp. 81–96; and Pirouet, p. 116.