all of the beatles approved of the grey album
commentators often suggest that for many particularly the young the beatles performances reignited the sense of excitement and possibility that momentarily faded in the wake of the assassination and helped pave the way for the revolutionary social changes to come later in the decade
along with innovative studio techniques such as sound effects unconventional microphone placements tape loops double tracking and varispeed recording the beatles augmented their songs with instruments that were unconventional in rock music at the time