Poulenc, Francis. (1899–1963) [Rosenthal, Manuel. (1904–2003)] Autograph letter signed to Manuel Rosenthal about "Stabat Mater"ALS of the French composer from the group "Les Six" to Manuel Rosenthal, one of the most influential and respected French conductors of the 20th century. In French. Monaco, April 8 [no year; 1957?]. 2 pp. On letterhead paper of Hotel de Paris, Monte Carlo. Poulenc thanks Rosenthal enthusiastically for a performance of his Stabat mater, translated from the French in part: "What an honor you have bestowed on me by your incomparable execution of the