Karnataka are a Welsh progressive rock band formed in 1997 by Ian Jones, Jonathan Edwards (keyboards) and Rachel Jones (vocals). The band started as a project to record songs in Ian's home studio, that had been written and performed by Jonathan, Rachel and Ian in earlier bands. The project was augmented by additional musicians, Paul Davies and Gavin Griffiths (drums), who had played with other members of Karnataka in earlier bands. At the end of the recording the decision was made to continue the project as a band. The name Karnataka was chosen by the band, from a suggestion by Ian, following his trips to that state of India.

Mostly Autumn are an English rock band. The group formed in 1995 and have built their reputation through constant touring, never signing to a major label. They produce music heavily influenced by 1970s progressive rock. According to the BBC, Mostly Autumn "fuse the music of Genesis and Pink Floyd with Celtic themes, hard rock and strong, emotional melodies". They have also been compared with other progressive bands from the same era such as Renaissance, Jethro Tull and Camel, blended with traditional folk music. Later albums also include more contemporary influences.