Composer Michael Nyman wrote the one-act, minimalist opera The Man Who Mistook His Wife for a Hat, based off the neurological case study written by Oliver Sacks under the same title. The opera is about a professional singer and professor whom suffers from visual agnosia. In chapter 1, the plot and history of the opera are discussed. Chapter 2 places The Man Who Mistook His Wife for a Hat alongside a selection of minimalist operas from Philip Glass and John Adams. Chapter 3 contains a history of the Fluxus art movement and shows where Fluxus-like examples appear in the opera. Chapter 4 includes Nyman's usage of minimalism, vocal congruencies, and Robert Schumann as musical elements that convey the drama.