Contemporary Composers - Lot of Autograph Letters and Notes Signed

Group of 22 letters and notes (some handwritten, a few typed) by contemporary composers, including: lyricist/songwriter and singer Charles Aznavour (French-Armenian, b.1924), autograph note signed on a card with his letterhead, 5.6 x 4.1 inches - Songwriter Al Kasha (American, b.1937), short typed note, signed by him, 5 x 3 inches - William Schmidt (American, 1926-2009), typed letter signed, dated in 1986, to a fan, 1 page, 8.5 x 11 inches - Charles Wuorinen (American composer, b.1938), typed letter signed and dated in 1999, to a fan, 1 page, 8.5 x 11 inches - Raymond Parfrey (American, 1928-2008), typed letter to a fan, signed, dated in 1993, 1 page, 8.25 x 11.5 inches - Bernhard Heiden (German-American, 1910-2000), autograph letter signed, dated in 1993, 1 page, to a fan, 8.5 x 11 inches - Theldon Myers (American, b.1927), typed letter signed, to a fan, dated in 1991, one page, 6.75 x 10 inches -  Ernst Krenek (Austrian-American, 1900-1991), short autograph note signed, dated in 1980