This dissertation focuses on the clarinet music of Luigi Bassi (1833-1871), an Italian clarinetist and composer. Biographical information and performance history for Luigi Bassi are included. Bassi wrote 27 works for clarinet, including 15 opera fantasies or transcriptions. Most of his works are housed in the Milan Conservatory library. This document provides analysis of all but two of Bassi's 27 works. For Bassi's pieces with ties to opera, I identified his source material and discussed the ways in which he manipulated the material. A brief synopsis of each opera is included. This study serves as a performance guide for those seeking to perform Bassi's clarinet works.