What was George Martin's 'secret history'?
Martin's initial hesitation was due to their personal presentation as much as their musical shortcomings
he wasn’t sure about .... shaggy hair, Liverpool accents .... their beat-up gear .... {their}studio professionalism ... source
According to Womack, this may have been rooted in his own ‘hidden’ background. For while The Beatles cheerfully conceded what Mark Lewisohn describes as 'their unvarnished working class roots', Martin carefully concealed his.
According to Kenneth Womack's biography, Maximum Volume (2017), the suave, sharply dressed producer came from 'a family that had no electricity or running water and had one gas jet.'
George Martin - the early years (3 minute free read)