Immensely influential, the remarkable Symphonie fantastique was composed while Hector Berlioz was suffering an intense and unreciprocated passion for the Irish actress Harriet Smithson. Its autobiographical tale describes a young musician’s opium-poisoned nightmares of jealous despair and fatal justice following the murder of his beloved. Berlioz wrote a second movement cornet solo into a subsequent revision of the score, here included as an optional extra. He wed his sweetheart actress but, recuperating in Nice, wrote Le corsaire after the final break-up of their marriage.

"Berlioz, to me, in terms of sheer orchestral invention, anticipates Mahler. If anything, he even surpasses him. So these are some of the things that characterise Berlioz: the extremes, the dynamics, the sound, the colours of the orchestra. Ravel was more about homogenisation. And I mean that in an entirely positive sense, because he’s taking the orchestral palette and really thinking very carefully about the essence of instrumental sonorities and how they go together." – Leonard Slatkin