Three items: a program for the 1947 world premiere of The Mother of Us All, six pages, signed and inscribed to fellow composer Edward Cohen by Thomson, and also signed by conductor Otto Luening and most members of the cast; a TLS to Cohen on personal letterhead, one page, October 18, 1985, in part: "Thanks for the souvenir program. It would have been nice if Gertrude Stein could also have signed it"; and a first edition hardcover of The Musical Scene, with dust jacket, signed and inscribed to the composer and pianist Erno Balogh. In overall fine condition. Accompanied by the original mailing envelope for the letter