AMQS from the Italian composer, who has penned the first five measures of the first movement from his Quinto Concerto, marked Molto moderato, and including dynamic and expressive markings for the tenor trombone, tam-tam, harp, violins, and viola, as well as the dedication, "Dedicated to the Memory of Serge and Natalie Koussevitsky."  He has noted the year of composition, 1955, next to his signature, and dated the AMQS to Rome in January 1981.  Light vertical and horizontal creases, overall in fine condition.  8.5 x 11 inches (21.6 x 27.9 cm.).

Petrassi was "one of the most influential Italian composers of the 20th century. He is known for incorporating various avant-garde techniques into a highly personal style...Petrassi composed in a variety of styles—his early music shows the influence of Alfredo Casella and Paul Hindemith, while his later works were influenced by Igor Stravinsky and Arnold Schoenberg." (Encyclopedia Britannica)