“In this Music [the singing of the angels in harmony] the World was begun; for Iluvatar made visible the song of the Ainur,and they beheld it as a light in the darkness.”
“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 fashipn 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 depths and into the heights, and the places of the dwelling of Iluvatar were filled to overflowing, and the music and the echo of the music went out into the Void, and it was not void.”
“Therefore he willed that the hearts of Men should seek beyond the world and should find no rest therein; but they should have a virtue to shape their life, amid the powers and chances of the world, beyond the Music of the Ainur, which is as fate to all things else; and of their operation everything should be, in form and deed, completed, and the world fulfilled unto the last and smallest.”
“In the waters there lives yet the echo of the Music of the Ainur more than any substance else that is in this Earth; and many […] hearken still unsated to the voice of the Sea, and yet know not for what they listen.”
“There was Eru, the One, who in Arda is called Ilúvatar; and he made first the Ainur, the Holy Ones, that were the offspring of his thought, and they were with him before aught else was made.”
“It is said by the Eldar that in water there lives yet the echo of the Music of the Ainur more than in any substance that is in this Earth; and many of the Children of Ilúvatar hearken still unsated to the voices of the Sea, and yet know not for what they listen.”
“And suddenly first one and then another began to sing as they played, deep-throated singing of the dwarves in the deep places of their ancient homes; and this is like a fragment of their song, if it can be like their song without their music. [...]As they sang the hobbit felt the love of beautiful things made by hands and by cunning and by magic moving through him, a fierce and jealous love, the desire of the hearts of dwarves. Then something Tookish woke up inside him, and he wished to go and see the great mountains, and hear the pine-trees and the waterfalls, and explore the caves, and wear a sword instead of a walking-stick. He looked out of the window. The stars were out in a dark sky above the trees. He thought of the jewels of the dwarves shining in dark caverns. Suddenly in the wood beyond The Water a flame leapt up - probably somebody lighting a wood-fire-and he thought of plundering dragons settling on his quiet Hill and kindling it all to flames. He shuddered; and very quickly he was plain Mr. Baggins of Bag-End, Under-Hill, again. He got up trembling.”