Pentangle, along with Fairport Convention, were one of the shining lights in the modernisation of British folk music in the 1960s. Rather than adding elements of rock music, however, they leaned toward jazz, supplementing twin acoustic guitars with jazzy drums and acoustic bass.
These are photos from concerts where Pentangle played, so they may be of other bands that played the concert as well.
Concert of contemporary and Traditional Folk Music Jul 24, 1971 Bardney, England, United Kingdom Uploaded by Ted Scott