Lewis Lockwood is the Fanny Peabody Research Professor of Music, emeritus, at Harvard University. He is the author of the widely acclaimed Beethoven: The Music and the Life and other books. Mark Kroll is an emeritus professor of music at Boston University and is known as one of the world's leading harpsichordists and fortepianists. He is also a noted authority on performance practice and period instruments whose publications include Johann Nepomuk Hummel's arrangements of Twelve Overtures and Mozart's Haffner and Linz Symphonies.
