Ian Gillan and disliked live albums in general. He tended to go into the studio after the rest of the band had recorded and finished the backing tracks, particularly for "Who Do We Think We Are", to lay down his vocals separately. He had been continually at loggerheads with Blackmore, disagreeing about music regularly, which culminated in Gillan writing "Smooth Dancer" about him. While on tour in Dayton, Ohio, he sat down and wrote a resignation letter to the band's managers, stating he intended to leave the band, effective from 30 June 1973. After his departure from Deep Purple, Gillan retired from
Deep Purple periods between 1968 and 1969 with the line-up including Rod Evans (lead vocals) and Nick Simper (bass, backing vocals), between 1974 and 1976 with the line-up including David Coverdale (lead vocals) and Glenn Hughes (bass, vocals) (and Tommy Bolin replacing Blackmore in 1975), and between 1989 and 1992 with the line-up including Joe Lynn Turner (vocals). The band's line-up (currently including Ian Gillan, and guitarist Steve Morse from 1994) has been much more stable in recent years, although keyboardist Jon Lord's retirement from the band in 2002 (being succeeded by Don Airey) left Ian Paice as the only original Deep