Dark has been played on NTS over 10 times, featured on 14 episodes and was first played on 20 March 2014.

Dark was a British psychedelic rock band which released one album, "Round the Edges" in 1971. This legendary progressive rock band, which was responsible for the UK's most expensive album, was formed by Steve Giles whilst at school in Northampton in 1968. They connected with local entrepreneur/engineer Alan Bowley who'd recently converted a derelict house into a recording studio, and this led to four acetates of "RC8" and "In The Sky". They performed at a few local gigs, and as their playing got tighter, they decided to go into SIS Studios, Northampton, with Alan Bowley, to record an album.

The six tracks, written and arranged by the band were recorded over a weekend in 1972 and consist of melodic progressive rock laced with lots of fuzzy guitar riffs. Only a handful of copies were pressed, and Giles, who had a strong interest in photography, made the first twelve copies into full-colour gatefold sleeves, complete with booklets of photographs stapled together, augmented with handwritten notes. They were handed out to band members and their girlfriends! The band then split with Clive and Martin going their own ways, and Steve and Ron continuing to record for their own pleasure until 1977 when Ron married and moved to Cornwall.