The oral bard who uses such formulaic language is not, as scholars in the nineteenth century who struggled with the problem of illiterate bards all assumed, a poet reciting from memory a fixed text. He is improvising, along known lines, relying on a huge stock of formulaic phrases, lines and even whole scenes; but he is improvising. And every time he sings the poem, he may do it differently. The outline remains the same, but the text, the oral text, is flexible. The poem is new every time it is performed.

Unknown, Homer, Robert Fagles_ Knox,…, loc. 36