Composer, performer, instrument builder, teacher, and writer Gordon Mumma has left an indelible mark on the American contemporary music scene. A prolific composer and innovative French horn player, Mumma is recognized for integrating advanced electronic processes into musical structures, an approach he has termed "Cybersonics." Musicologist Michelle Fillion curates a collection of Mumma's writings, presenting revised versions of his classic pieces as well as many unpublished works from every stage of his storied career. Here, through words and astonishing photos, is Mumma's chronicle of...