With his characteristic backslap acoustic guitar playing, his effects-driven experimental journeys, and his catalog of excellent songs as well as his jazz-inflected singing style, John Martyn is an important and influential figure in both British folk and rock. Martyn started out as a folk artist with jazzy leanings that were highly unusual for the mid-'60s. He made a couple of albums with then-wife Beverley that were very much of their time before embarking on a musical journey that combined folk, blues, jazz, and rock, with a tendency towards electronic and atmospheric exper...