The purpose of this document is to present research on methods of arranging music for viola and piano (or viola and orchestra) from music originally written for clarinet and piano (or clarinet and orchestra). Subjects of research include arrangements made by the composer as well as those made by other arrangers. Principal works studied include the Brahms Clarinet Sonatas Op. 120, Nos. 1 and 2, and the Mozart Clarinet Concerto in A. Examples are also included from other relevant works fitting the criteria. Following the analysis on arranging techniques, I have used knowledge gained from my research to prepare an arrangement for viola of the Saint-Saens Clarinet Sonata in E-flat, Op. 167. Saint-Saens, who wrote no solo music for the viola, wr...