El libro de los cuentos perdidos
"The Music of the Ainur", as it appears in "The Book of Lost Tales", is based on Norse mythology. Like "Theogony" and "Gylfaginning" in the "Prose Edda", it answers cosmogonical questions. The story's style has been compared to that of old Norse texts. Although the wording differs substantially, the Valar and the Æsir are alike in influencing the world and being influenced by their actions; Manwë has been compared to Odin in this context.