Music of the Ainur: Rap? Country? Opera?

[Duncariel]

Arwen, somewhere up there, is correct...

Then the voices of the Ainur, like unto harps and lutes, and pipes and trumpets, and viols and organs, and like unto countless choirs singing with words, began to fashion the theme of Iluvatar to a great music; and a sound arose of endless interchanging melodies woven in harmony that passed beyond hearing into the depthes and into the heights...

that (as she said) is from the Ainuluindale, of the Ainur.
Hill Troll's comment about Melkor and the guitar rocked(withour the static)