If the internet is to be trusted, the guitarist Peter Walker has not played a gig in the UK since 1962. In the interim, he has befriended Karen Dalton, Sandy Bull and Janis Joplin, provided instrumental accompaniment for Dr Timothy Leary’s early LSD experiments, learned the art of raga from Ravi Shankar in the same class as George Harrison, and spent nearly four decades in a truck in Woodstock, chiefly practising flamenco guitar.
