Kay understands song in terms of breath, the constellations, the animal soul, and life itself. Her method also draws inspiration from opera, especially those that inventively recreate medieval song, arguing for a perspective on the manuscripts that transmit medieval song as instances of multimedia, quasi-operatic performances.
Medieval Song from Aristotle to Opera features a companion website (June 2026 update - a new version is in development and will be online soon) hosting twenty-four audio or video recordings, realized by professional musicians specializing in early music, of pieces discussed in the book, together with performance scores, performance reflections, and translations of all recorded texts. These audiovisual materials represent an extension in practice of the research aims of the book—to better understand the sung dimension of medieval song.
Sarah Kay is a Life Fellow of Girton College, University of Cambridge, and Professor Emerita at New York University. She is the author of Animal Skins and the Reading Self in Medieval Latin and French Bestiaries and Parrots and Nightingales.