Ian Paice + Purpendicular: A Legacy of Rock, Reinvented. Originally founded in 2007 by Irish frontman Robby Thomas Walsh as a tribute to Deep Purple, Purpendicular has evolved into a powerhouse of original music, redefining its identity since 2019. The band is no longer just a tribute act, but an independent creative force with an all-star lineup of musicians who have shaped the rock and funk scene and have toured extensively throughout Europe since 2007.