Allan Holdsworth

Allan Holdsworth (6 August 1946 – 15 April 2017) was a British jazz and rock guitarist, violinist and composer. He contributed to numerous bands, including Soft Machine, U.K., The Tony Williams Lifetime, Pierre Moerlen's Gong, Bruford, Level 42, and Planet X, in addition to solo work in multiple genres.

Holdsworth was known for his esoteric and idiosyncratic usage of advanced music theory concepts, especially with respect to melody and harmony. His music incorporates a vast array of complex chord progressions, often using unusual chord shapes in an abstract way based on his understanding of "chord scales", and intricate improvised solos, frequently across shifting tonal centres. He used myriad scale forms often derived from those such as the Lydian, diminished, harmonic major, augmented, whole tone, chromatic and altered scales, among others, often resulting in an unpredictable and dissonant "outside" sound. His unique legato soloing technique stemmed from his original desire to play the saxophone, hence why he strove to use the guitar to create similarly smooth lines of notes. He also became associated with playing an early form of guitar synthesizer called the SynthAxe, made by a company he endorsed in the 1980s.