Bryn Mawr, PA: Theodore Presser Co., 1955. First edition. Wrps., 40pp. SIGNED and inscribed by Rochberg to fellow composer, Andrew Imbrie, dated "11/27/57". Contains Rochberg's study of symmetrical row construction in Schoenberg's later works, never explicitly discussed by Schoenberg himself, according to Rochberg. Neat stamp crossed out in black marker pen on upper panel, o/w Very Good plus.