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,
Gillan (band) then accepted an offer to front Black Sabbath to the incredulity of the Gillan band members, particularly McCoy, and the acrimony remains to the present day. McCoy subsequently released compilations of studio out-takes to which he had the rights, known as "The Gillan Tapes", and ensured that revenues were distributed fairly amongst the band. Bernie Tormé and John McCoy collaborated on the GMT band project, releasing two albums in 2006 and 2009. According to at least one interview, Gillan did not have nodes removed as British doctors recommended, as he was afraid that would adversely affect his voice. A German