[3] In Britain, one of the major strands that emerged from the short-lived skiffle craze of 1956–9 were acoustic artists who performed American progressive material.
The term progressive began to be used by radio stations to describe psychedelic music, including pop, rock and folk, that emerged from this scene.
[6] Los Angeles and San Francisco produced bands such as Kaleidoscope, The Peanut Butter Conspiracy, The Beau Brummels, and It’s A Beautiful Day.
Folk artists who were particularly significant included the Scottish performers Donovan, who combined influences of American artists like Bob Dylan with references to flower power, and the Incredible String Band, who from 1967 incorporated a range of influences into their acoustic based music, including medieval and eastern instruments.
This was particularly notable with artists like Davy Graham, Martin Carthy, Bert Jansch and John Renbourn, who fused various styles of American music with English folk to create a distinctive form of fingerstyle guitar playing known as 'folk baroque'.
[10] Using medieval, jazz and blues elements in their playing, this was an overt attempt to push British folk music into new territory, and can be seen as a forerunner of progressive rock.