then-wife Marianne blamed his illness on his longtime dependency on Valium, which he had been prescribed since the age of 12. She threw away the tablets, and over the next year, he experienced intense withdrawal effects that he later described as "brain melt". XTC became their own producers for their next album project. Until this point, Partridge had insisted that every part of the band's arrangements on record could be replicated live. He believed that "if I wrote an album with a sound less geared towards touring then maybe there would be less pressure to tour." As such, the new music showcased more complex and intricate arrangements, song lengths were longer, and subject matter covered broader social issues. Much of the new material also featured acoustic instruments. Gregory bought a Rickenbacker 12-string and began contributing to the records as a keyboardist. In February 1982, English Settlement was released as the group's first double album. The hook of its lead single, "Senses Working Overtime", was based on Manfred Mann's "5-4-3-2-1" (1964), Both the album and single became the highest-charting records they would ever have in the UK, peaking at number five and number 10, respectively. In several territories outside the UK, the album was released as a single LP. The group scheduled television appearances and an international tour in support of English Settlement. During a live-broadcast gig in Paris on March 18th, Partridge stopped playing and ran off the stage during the opening song 'Respectable Street', and afterward, took a flight back to Swindon for treatment, which amounted to hypnotherapy. He described feeling nausea and stomach pains while on stage: "My body and brain said, You're hating this experience I'm going to make it bad for you. When you go on stage I'm going to give you panic attacks and stomach cramps. You're not enjoying this and you haven't got the heart to tell anyone you can't carry on so I'm gonna mess you up." The band's remaining tour dates in England were cancelled. After recovering from the episode, Partridge rejoined the group for their first tour of the US as a headlining act. The band played the first date in San Diego. Gregory said that they were "totally unrehearsed" during the performance because "we'd not played together for two weeks. ... It was obvious that he was ill, but exactly what it was, no-one knew." On 4 April 1982, XTC