The Sonata of Darkness is a piece of music said to be composed by Satan himself.
It has solo parts for the piano, violin, harp, and flute. Melody heard the flute solo, and it changed her appearance dramatically; her unnamed friend, who played it, died a gruesome death. Melody was also given her ability, supernaturally keen hearing, by the Sonata, but has said that she would trade it to be the way she was.
Yorknew City arcEdit
Kurapika questions the Sonata's existence while speaking to Melody; in reply, she rolls up her sleeve and shows him how the Sonata affected her. Though never revealed, the sight of her skin is enough to make Kurapika shiver. Melody is now searching for the Sonata in order to destroy it.