Eddie Van Halen has died aged 65. He will be remembered for his virtuoso playing, particularly his groundbreaking, two-handed, finger-tapping technique.
A virtuoso guitarist and songwriter, Green's career was blighted by drug-amplified mental health problems.
An ethnomusicologist traces the origins of the practice, from early 20th century 'air conductors' to Joe Cocker's air riffing at Woodstock to the rise of international competitions.
There are numerous women guitar virtuosos, from Joan Jett to Orianthi to St Vincent. Why are they so conclusively excluded from the rock canon?