Claim: The Ritual Fire Dance uses a solo piano in the piano rendition and a mezzo-soprano in the ballet transcription.
Evidence: Danza ritual del fuego (English: Ritual Fire Dance) is a movement of the ballet El amor brujo (The Bewitched Love), written by the Spanish composer Manuel de Falla in 1915. Piano Rendition Solo piano Ballet Voice (mezzo-soprano), 2 flutes (piccolo), oboe (cor anglais), 2 clarinets, bassoon, 2 horns, 2 trumpets, timpani, percussion, piano and strings.