Folk music has been evolving and adapting for centuries, but in the 1960s and 70s came an extraordinary period of change and innovation. Rock musicians borrowed from traditional songs, while folk musicians re-worked ancient ballads using electric guitars and drum kits. From Dylan to Fairport Convention, Richard Thompson and Steeleye Span, the fusion of old and contemporary created a powerful new style: folk-rock. Since then, new and experimental folk fusions have continued, involving anything from rap to electronica.