Ian Gillan band, who had not had any holiday since their initial rehearsals at Hanwell. He started drinking, and relationships between him and the rest of the band became strained, particularly with Blackmore. On 6 November 1971, he collapsed with hepatitis while waiting to board a plane in Chicago, cancelling the remainder of a US tour. By December 1972, having recorded "Machine Head", "Made in Japan" and the yet to be released "Who Do We Think We Are" with Deep Purple, Gillan finally decided the workload had driven him to exhaustion. Unlike some band members, he was unhappy about "Made in Japan",
Graham Bonnet work on a new studio album to be recorded featuring new compositions and a bonus disc consisting of re-recordings of a number of songs from Bonnet's career. The final line-up of The Graham Bonnet Band is: Graham Bonnet, Vocals; Conrad Pesinato, Guitars; Beth-Ami Heavenstone, Bass; Mark Zonder (Ex-Fates Warning), Drums. The band will resume touring towards the end of 2016. On 4 November 2016, The Graham Bonnet Band released their debut album, 'The Book.' Reviews were positive, with the Real Gone website calling the album "surprisingly good" and also stating that some of the tracks "exceeded expectations by some distance".