McCartney's bassline, in counterpoint to this droning, was described by music critic Ian MacDonald as "dreamy" and "well thought out as a part of the production by McCartney". It was recorded after the main track was completed, as were many of the bass lines on "Sgt Pepper's Lonely Hearts Club Band". Starting out in the verse with a pedal on the root note (G) that leaps two octaves, McCartney moves to a marching quarter-note (walking) bass line for the first (and only the first) chorus. In stark contrast, all subsequent choruses are played using a fluid, swing feel, full of anticipated notes that propel the song forward despite the quarter-note droning of the guitar and keyboard.