10. “Lucy in the Sky with Diamonds”
Praising Sgt. Pepper’s Lonely Hearts Club Band as a landmark innovation is old hat at this point, but for the most part, Paul’s bass plays a background role. On this song, though, it’s vital. “Lucy in the Sky with Diamonds” starts out like a dream, George Harrison’s tamboura and McCartney’s Lowrey organ combining with John Lennon’s delicate vocals to create the effect of Alice going down the rabbit hole. One thing keeps the song grounded in reality: McCartney’s steady bass line. It begins walking during the pre-chorus (“Cellophane flowers of yellow and green”) to drive an increase in the song’s energy, leading to the triumphant, titular explosion of sound in the chorus.
09. “Hey Bulldog”
The fact that “Hey Bulldog” is piano-driven means that McCartney isn’t holding down the low end on his own — there’s piano down there, too. And with the piano locking in on a steady beat the way you’d traditionally expect a bass to do, McCartney’s able to carve out his own niche, both rhythmically and melodically. His bass thuds in a way that a piano can’t, acting almost like a guitar during the song’s verses and leaping all over the place. And during the guitar solo, he noodles around, acting almost like a partner to the guitar instead of its backup. This is an excellent example of McCartney’s ability to make the bass a melodic instrument.
“Rain” is legendary for its relentless rhythm section. Noted as one of Ringo’s best drum songs, McCartney’s bass playing exists to match Starr’s inventiveness. His bass does some exploring during the more static parts of Starr’s playing, then chills out during the drum fills, creating a seamless bottom end of the song (but even then, it’s not really a bottom end since he’s playing mostly high notes). The repetitive, trance-like notes during the “chorus” emphasize the more Eastern modes of the song. Add in the perfection with which McCartney accentuates Starr’s quasi-drum break at the end of the song, and you’ve got one of his tightest bass performances.
McCartney has said that he had the idea to write just a melody and a bass line for “Michelle” and then let the rest fill out around it. What we end up with is one of the jazzier Beatles songs, a departure not only from the rest of Rubber Soul but also from what their music as a whole had sounded like until this moment. The lilting bass walks in a more traditional rhythm than what we’d see out of Paul later in his career, but it’s the force that leads the inventive chord changes, the instrument to which you can clearly tell McCartney keyed “Michelle’s” iconic melody, and it sets the tone for a lovely lounge-like number.
06. “Helter Skelter”
The story goes that McCartney heard “I Can See for Miles” and decided The Who couldn’t be the heaviest band out there, so he wrote “Helter Skelter” to top them. When you’re competing with The Who, you compete with John “Thunderfingers” Entwistle, one of the more legendary bassists ever to have lived. Accordingly, it’s McCartney’s bass that drives most of the raw, powerful, heavy energy of the song, thudding along unstoppably below his shrieks. Even though it lacks the melodic finesse of McCartney’s other work, it stands out as a rhythmic and stylistic precursor to heavy metal; in the bass tone, you can hear shades of John Paul Jones’ work with Led Zeppelin and Geezer Butler’s work with Black Sabbath.
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