Hector Berlioz - Dream of a Witches' Sabbath from Symphonie Fantastique
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The 20 scariest pieces of classical music

6. Hector Berlioz - Dream of a Witches' Sabbath from Symphonie Fantastique
Berlioz uses a range of orchestral effects to create the scene of a gathering of witches - violins using the backs of their bows to create bubbling cauldron sounds, the sound of a funeral bell and outbursts of musical laughter.