Can you answer this paradox?

I just came up with this paradox: There was a seer/prophet who saw a vision of a person singing a song. He wrote down the words in a book. Centuries later, a person found the old book and he read the words the prophet wrote. He was touched by the words that he made a song from the same words. As it turned out, he was the person the prophet saw in his vision. Now, my question is: Who composed the words to the song?