: Jon Lord opens with a slow-building, atmospheric Hammond organ riff [23]. Interestingly, the melody was inspired by the song "Bombay Calling" by the band It's a Beautiful Day [9].

This performance features the classic "Mark II" lineup, responsible for the band's most legendary work [15, 20]: : Lead vocals [4, 20] Ritchie Blackmore : Guitar [4, 20] Jon Lord : Organ/Keyboards [4, 20] Roger Glover : Bass [4, 20] Ian Paice : Drums [4, 20] Key Musical Movements

Watch the iconic 1970 live performance from the British TV show Doing Their Thing: Deep Purple - Child In Time - Live (1970) Deep Purple Official YouTube• May 25, 2010 The Lineup (Mark II)

: This track cemented Ian Gillan as one of rock’s greatest vocalists [12]. It is so demanding that the band eventually stopped performing it live to preserve Gillan's voice.