Donald Jay Grout was, until his death in 1987, Given Foundation Professor of Musicology Emeritus at Cornell University. He was author of the classic A History of Western Music, and Alessandro Scarlatti: An Introduction to His Operas, as well as general editor of The Operas of Alessandro Scarlatti.
Hermine Weigel Williams is Scholar-in Residence at Hamilton College. She has contributed to The New Grove Dictionary of Music, The Operas of Alessandro Scarlatti, and The Symphony: 1720--1840. She is author of Francesco Bartolomeo Conti: His Life and Music, Sibelius and His Masonic Music, and co-author of Giovanni Battista Pergolesi: A Guide to Research. She is also co-editor of Facts Behind the Songs: A Handbook of American Popular Music from the Nineties to the 90's.