Formed in 1968, Jethro Tull are one of rock's most enduring bands. Their 1971 album Aqualung, with its provocative lyrical content and continuous music shifts, is Tull's most successful and most misunderstood record. Here, music professor and fan Allan Moore tackles the album on a track-by-track basis, looking at Ian Anderson's lyrics and studying the complex structures and arrangements of these classic songs.

Allan Moore is Professor of Popular Music and Head of the Department of Music and Sound Recording at the University of Surrey, UK.