The introduction beginning "To lead a better life" opens in the key of G and involves a I–iii–III–ii–V7 chord progression. The III (B chord) on "I need my love to be here" (arpeggiated in the melody line) is a dissonant substitute for the more predictable VI (E7) that would normally lead to the ii (Am) chord. Music critic Richie Unterberger considers that this "dramatic opening [lyric]" contains "an almost philosophical undertone of humility, acknowledging that the singer needs his woman not just to be happy, but also to be a better person". The verse opens strongly anchored on "Here" in the key of G (with simultaneous I (G chord) and melody G note) and moves equally predictably to a I–ii–iii–IV chord shift (G–Am–Bm–C) through "making each day of the year". This repeats on "Changing my life with a wave"; but immediately after (in bar 5) the song indeed changes on "of her hand". It goes down six semitones from the IV (C chord) to a vii (Fm) [adding a non-G scale C#] then a V-of-vi (B7) chord [adding a non-G scale D] which briefly modulates towards a new tonic E minor. McCartney mostly sings a B note ("of her hand") over both Fm, where it is the eleventh, and the B7, where it is the tonic. When the sequence is repeated ("nobody can"), McCartney sings both B and C over the Fm, the C natural producing a tritone. The harmonic fascination with the bridge segment beginning "I want her everywhere" is that at that point the key centre does go "everywhere". It shifts via an F7 chord (a VII in the old G key and a V7 in the new B key) to a I–vi–ii (B–Gm–Cm) chord progression in B major. It then shifts again via a D7 chord (a III7 in the old B key and a V7 in the new Gm key) to G minor where we go through a i–iv (Gm–Cm chord) progression. Finally the pivot of D7 takes us back to the G major tonic and reinforcing G melody note of "Everywhere". "Rolling Stone" has noted: "The tune's chord sequence bears Brian Wilson's influence, ambling through three related keys without ever fully settling into one, and the modulations – particularly the one on the line 'changing my life with a wave of her hand' – deftly underscore the lyrics, inspired by McCartney's girlfriend, actress Jane Asher."