Locomotive

Aqualung is the fourth studio album by the British rock band Jethro Tull, released on 19 March 1971 by Chrysalis Records. Blending progressive rock, folk and hard rock, the album expands on the eclectic musical approaches explored on the band's previous albums by featuring riff-heavy rock songs alongside acoustic, singer-songwriter material placing greater emphasis on lead vocalist and primary songwriter Ian Anderson. Lyrically, the album addresses themes of religion and spirituality, alongside social issues such as homelessness and prostitution.