By this means they built the walls

"Don't think it strange if you hear that wild animals and trees followed Orpheus from place to place; and that by their singing both Amphion in Greece and Apollo in Phrygia imbued stones with such lust that they began mounting one another – as many of you here would do if given the opportunity. By this means they built the walls of Thebes [Oedipus slept there] and those of Priam's city [Troy]..."

—Ariosto, preface to 'the Necromancers' [1520]; in 'The Comedies of Ariosto,' Beame and Sbrocchi (transl's.) University of Chicago Press, 1975 p101.