 The Rickenbacker's design allowed for greater melodic precision, a characteristic that led McCartney to contribute more intricate bass lines.Harrison used a Fender Stratocaster for the first time during the sessions, most notably in his lead guitar part on "Nowhere Man".The variety in guitar tones throughout the album was also aided by Harrison and Lennon's use of capos, particularly in the high-register parts on "If I Needed Someone" and "Girl".