Hans Leo Hassler and the Keyboard Toccata: Antecedents, Sources, Style - Panetta, V. J. (Ann Arbor, MI UMI Research Press, 1991)
Dissertation
Handwritten dedication from the author to Gustav Leonhardt
Keywords: Haßler, Hans Leo -- 1564-1612; 16th Century (1501-1600); 17th Century (1601-1700); Toccata; Musical style; Keyboard music; Germany