Who said "Music is the voice of the soul singing to itself."?

This quote is attributed to Oberyn Martell.

Music is the voice of the soul singing to itself. - Oberyn Martell

"Music is the voice of the soul singing to itself."

Oberyn Martell Music

"I am the viper. When the time comes, I will strike."

"Elia of Dorne. My sister. You raped her. You murdered her children."

"I want to look the man in the eye and see the fear in his heart."

"The man who passes the sentence should swing the sword."

"Music is the language of the soul."

"My music comes from my heart."

"Music transcends all language barriers."

"Music is the universal language of love."