This page contains a list of artists whose acoustic guitar playing techniques we might be interested in, with links selected discographies and Amazon mp3 downloads.
The last decade has seen the release of a number of sometimes previously unreleased recordings featuring John Martyn in live performances mainly from the 70s and 80s, nearly all on the acoustic guitar and often appearing solo or accompanied by Danny Thompson.
Here I've included some of the better compilation albums available. If you want an overview of John Martyn's work at various stages of his career, these might be worth checking out.