Fairport Convention are an English folk rock band, formed in 1967 by guitarists Richard Thompson and Simon Nicol, bassist Ashley Hutchings and drummer Shaun Frater. They started out influenced by American folk rock, with a set list dominated by Bob Dylan and Joni Mitchell songs and a sound that earned them the nickname "the British Jefferson Airplane". Vocalists Judy Dyble and Iain Matthews joined them before the recording of their self-titled debut in 1968; afterwards, Dyble was replaced by Sandy Denny, with Matthews later leaving during the recording of their third album. Denny began steering the group towards traditional British music for their next two albums, What We Did on Our Holidays and Unhalfbricking; the latter featured fiddler Dave "Swarb" Swarbrick, most notably on the song "A Sailor's Life", which laid the groundwork for British folk rock by being the first time a traditional British song was combined with a rock beat.