When Wolfgang Amadeus Mozart conjured up his fifth violin concerto, he was not even 20 years of age. He composed it in A major, one of his favourite keys. In his work, this key often corresponds to dreamy, floating and delicate sounds. And this concert is thus so filled with beauty that it almost brings tears to the eyes when listening. But Mozart wouldn’t be Mozart if he had not mixed a portion of darker, almost demonic undertones into this shimmering music. We also encounter them in the “Symphonie fantastique” by Hector Berlioz, which concludes with a fantastical vision of a Witches Sabbath. Only three years after Ludwig van Beethoven’s death, the barely 27-year-old Berlioz thus created one of the Romantic period’s most important works – in a tonal language that was so new that the première unleashed a tremendous scandal. Presenting it is the very welcome guest conductor, Carl St. Clair. Since the last season, he has become the “honorary guest conductor” of the Wuppertal Symphony Orchestra.