New York Harper Perennial. Spaethling, Robert (2000) Mozarts letters, Mozarts life selected letters. Examples edit Self portrait in pencil of Maria Anna Thekla Mozart, from 1777 or 1778 A letter of 5 November 1777 to Mozarts cousin Maria Anna Thekla Mozart is an example of Mozarts use of scatology. Available on line at 7. Perhaps Szeryng and Rubinstein seized upon the best solution - to present the first movement with a constant tension of repressed emotions boiling beneath the classical surface, followed by a deeply-felt set of variations and culminating in a sharp.