The submission consists of a portfolio of eight compositions and a written commentary upon the works. The compositions for various instrumentations were made during my studies in Birmingham between 2017 and 2020. The compositions demonstrate my attempts to explore different types and degrees of repetition and their role in creating various musical outcomes. Alongside this, the commentary details my contextual observations about the uses of repetition in a wide range of music, stretching back to the 18th century but concentrating especially on 20th century developments. The categories I gleaned from these observations have informed the way I developed various uses of repetition in the presented compositions. In addition, the use of repetition in my music also takes into account a number of connections with other disciplines including music psychology, visual art, and Deleuzian philosophical ideas.