combined with this was the conscious desire to be different. mccartney said, "each time we just want to do something different. after "please please me" we decided we must do something different for the next song... why should we ever want to go back? that would be soft." the desire to "do something different" pushed emi's recording technology through overloading the mixing desk as early as 1964 in tracks such as "eight days a week" even at this relatively early date, the track begins with a gradual fade-in, a device which had rarely been employed in rock music. paul mccartney would create more sophisticated bass lines by overdubbing in counterpoint to beatles tracks that were previously completed. also overdubbed vocals were used for new artistic purposes on "julia" with john lennon overlapping the end of one vocal phrase with the beginning of his next. on "i want to hold your hand" (1963) the beatles innovated using organ sounding guitars which was achieved by extreme compression on lennon's rhythm guitar.