A Conductor's Guide to the Choral-Orchestral Works of the Classical Period, Part I: Haydn and Mozart is the fourth volume in Jonathan Green's innovative study of the vast body of choral-orchestral repertoire. A treasure-trove for conductors of choir and orchestras, in this volume all of the masses, oratorios, cantatas, litanies, vespers, and minor sacred works of Haydn and Mozart are carefully examined. For each work, the author has compiled the text source, duration, date of composition, date and place of premiere, location of manuscript materials, commercially available editions, a selected discography, a bibliography, and a brief history of the work. Most importantly, the performance concerns for the choir, orchestra, and soloists of each work are evaluated and described. This will prove to be an invaluable programming aid for conductors and a touchstone for anyone embarking on research into this music.