Giuseppe Verdi - Dies Irae from his Requiem
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The 20 scariest pieces of classical music

12. Giuseppe Verdi - Dies Irae from his Requiem
When it comes to spine-chilling music, it's hard to beat Verdi's Dies Irae, or 'Day of Wrath'. Verdi's Requiem is an epic achievement in every sense, but this depiction of the day of judgement is pretty unsettling stuff. Turn it up loud.