The uncompromising work of electric guitarist Allan Holdsworth is revered by some of the most accomplished musicians in rock, jazz, fusion and metal, including such ground-breaking artists as Steve Vai, John McLaughlin, Eddie Van Halen, Alex Lifeson, Frank Zappa, Joe Satriani, and countless others. Starting off his career with bands such as The Tony Williams New Lifetime, Bruford, U.K., and Soft Machine, in the early 1980s Holdsworth began releasing music under his own name, with bands comprised of some of the most creatively virtuosic players in rock and jazz. Aside from developing one of the most unique and recognizable styles in electric guitar, Holdsworth also pioneered the role of guitar synthesis in jazz composition and improvisation, and his work in the medium eventually gained the complexity and cinematic flavor of orchestral music (although achieved through electronic textures). This book (originally published in blog form as "A Thread of Lunacy: Appreciation and Analysis of the Otherworldly Music of Allan Holdsworth") traces the development of Holdsworth's musical works from 1969 to 2017 by examining more than 60 records which he led or recorded on. In addition to detailed musical explorations of these records, hundreds of published and unpublished interview fragments from print and online sources have been organized (by album) in order to give an idea of the circumstances behind each record and each stage of Holdsworth's career. Although this book is a perfect reference for Allan Holdsworth fans, another aim of this book is to help new listeners enter the frequently misunderstood universe of this "ahead-of-his-time" guitar genius. A full explanation of Holdsworth's approach to music composition and improvisation is presented, designed to be appreciated and understood by both casual music fans and advanced players.