This dissertation examines the relationship between the orchestral work, Escher Sketches, and the two graphic prints by M.C. Escher on which its music is based, Regular Division of the Plane I and Regular Division of the Plane VI. Chapter 1 provides background information on the two visual works and, generally, on Escher's work with the "regular division of the plane." Chapter 2 discusses how Escher Sketches, a 12-tone piece, utilizes a regular division of the octave in the construction of the

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... rime row forms behind its two movements. Chapter 3 and Chapter 4 explain how Movement I, "Birds and Fish," and Movement II, "Lizards," share structural similarities with Escher's prints at the background, middleground and foreground levels of the music.