Jethro Tull hardly stayed away. As a measure of the band’s devotion to the task, they’d already toured the States 11 times by the end of 1971, despite being barely three years into their ...

Even if their long career stalled at the start of the ‘70s, Jethro Tull would still go down in ... of prog-folk music – expertly displayed on 1971’s breakthrough ‘Aqualung’ album ...