Ian Gillan adding the then-seldom played "Maybe I'm a Leo" (named after Gillan's birth sign) and "When a Blind Man Cries" – the latter becoming a mainstay in the band's setlist ever since. He said that their first album with Morse, "Purpendicular", "was a such important record for Deep Purple that without that [other records] couldn't have been possible." He has remained Purple's lead singer, though the band has found more success touring than with producing records. Gillan pays particular interest to the lyrics in Deep Purple, and considers it his prime composing role within the band. Discussing the importance of lyrics,
Ian Gillan song "Mitzi Dupree" on "The House of Blue Light" is the original demo as Blackmore refused to re-record it. This culminated in Blackmore calling a rehearsal session without Gillan. After an acrimonious argument, Glover told Gillan, "Ian, you've gone too far this time," and he was fired. Gillan, meanwhile, formed a new version of Garth Rockett and the Moonshiners with keyboardist Mark Buckle, bassist Keith Mulholland, drummer Louis Rosenthal and guitarists Harry Shaw and Steve Morris. The band toured regularly through 1989, and recorded the album "Naked Thunder". Gillan later expressed dissatisfaction with the album, calling it "rather hum-de-dum". During