Green (Fredonia School of Music) presents information on the entire choral-orchestral output of Haydn and Mozart. Following a brief biography of each composer, he provides the approximate length of all works, text sources, performing forces, currently available editions, locations of manuscript materials, notes, performance issues, evaluation of solo roles and difficulty, and a bibliography and discography. An index of performers on the various recordings is included. Annotation c. Book News, Inc., Portland, OR (booknews.com)