The End of the Ars Nova in Italy: The San Lorenzo Palimpsest and Related Repertories. Antonio Calvia, Stefano Campagnolo, Andreas Janke, Maria Sofia Lannutti, and John Nádas, eds. La Tradizione Musicale 21; Studi e Testi 12. Florence: SISMEL Edizioni del Galluzzo, 2020. xvi + 314 pp. €54

Discovered by Frank d'Accone in 1983, SL contains 111 parchment leaves of music that were disbound and scraped clean to become a church record book in the early sixteenth century. Stone and D'Agostino provide useful bodies of evidence for further study on musical circulation that complicates this volume's title by questioning polyphonic practices and patronage in Florentine-dominated narratives. Particularly noteworthy is the book's availability in open access format, encouraging a wider dissemination of pluralistic approaches to ars nova studies that include conversations with the fields of literature, philology, history, and iconography.