Dear Tomoko, The song you are looking for, "Vel puo giurar" by Vicenzo Ferro, is complete in the volume "Willaert, Adrian: Musica Libro Primo a Tre Voci" in the Munich archive. The book contains madrigals by various composers, not just Willaert.
http://stimmbuecher.digitale-sammlungen.de/view?id=bsb00071885 will take you to the online viewer of the three partbooks, and https://download.digitale-sammlungen.de/BOOKS/download.pl?id=00071885&nr=1 will take you to the download page for the entire volume. (It's a 21.5 mb download.) Best wishes, Jim Kimbel To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html
