Task: Question Generation
Input (English): Passage: From the time of his earliest recordings in the 1960s, Bowie employed a wide variety of musical styles. His early compositions and performances were strongly influenced by rock and rollers like Little Richard and Elvis Presley, and also the wider world of show business. He particularly strove to emulate the British musical theatre singer-songwriter and actor Anthony Newley, whose vocal style he frequently adopted, and made prominent use of for his 1967 debut release, David Bowie (to the disgust of Newley himself, who destroyed the copy he received from Bowie's publisher). Bowie's music hall fascination continued to surface sporadically alongside such diverse styles as hard rock and heavy metal, soul, psychedelic folk, and pop.Musicologist James Perone observes Bowie's use of octave switches for different repetitions of the same melody, exemplified in his commercial breakthrough single, "Space Oddity", and later in the song "Heroes", to dramatic effect; Perone notes that "in the lowest part of his vocal register ... his voice has an almost crooner-like richness."Voice instructor Jo Thompson describes Bowie's vocal vibrato technique as "particularly deliberate and distinctive". Schinder and Schwartz call him "a vocalist of extraordinary technical ability, able to pitch his singing to particular effect." Here, too, as in his stagecraft and songwriting, the singer's role playing is evident: historiographer Michael Campbell says that Bowie's lyrics "arrest our ear, without question. But Bowie continually shifts from person to person as he delivers them ... His voice changes dramatically from section to section." In a 2014 analysis of 77 "top" artists' vocal ranges, Bowie was 8th, just behind Christina Aguilera and just ahead of Paul McCartney. In addition to the guitar, Bowie also played a variety of keyboards, including piano, Mellotron, Chamberlin, and synthesizers; harmonica; alto and baritone saxophones; stylophone; viola; cello; koto (in the Heroes track "Moss Garden"); thumb piano; drums (on the Heathen track "Cactus"), and various percussion instruments.
Output (English): What is the full name of the person whose voice, according to historiographer Michael Campbell, changed dramatically from section to section?