The essays in Unpopular Music were written during the author's extensive performing career with the NEXUS Percussion Group, The Rochester Philharmonic Orchestra, The Paul Winter Consort, and more. The book highlights the author's personal connections with major composers and orchestra conductors such as Pierre Boulez, John Cage, Aaron Copland, Seiji Ozawa, Igor Stravinsky, and Edgard Varèse. Cahn's essays reveal his reflections and memoirs on the world of art music and aesthetics drawn through his own experiences, touching on non-musical subjects - travel, restaurants, art museums, and more. In addition to performing with major orchestras under renowned conductors all over the world, Grammy recipient Bill Cahn continues to perform with NEXUS, the Toronto-based percussion quartet which is dedicated to a genre of music that is unfamiliar to most listeners, but which forms a significant worldwide musical niche - music for percussion ensemble.