Jethro Tull | Formed in 1967 | Named for no apparent reason after an 18th-century British agronomist who invented the machine drill for sowing seed | Their music, though starting with blues rock with an experimental flavor, has incorporated elements of classical and Celtic folk music | They have been described by Rolling Stone as one of the most commercially successful and eccentric progressive rock bands | Artwork by Johannes Saurer [©2009-2014 JSaurer]