Ilúvatar then proposes a Third Theme that Melkor attempts to corrupt, but the power of the Theme is such that he never succeeds, and the Music actually manages to incorporate some of Melkor's elements as a genuine improvement to itself.
Melkor attempts to corrupt. This is what Ilúvatar proposes a Third Theme. He never succeeds. The power of the Theme is such this. The Music actually manages to incorporate some of Melkor's elements as a genuine improvement to itself.