The recording opens with a harpsichord playing a descending chromatic line (resembling "Michelle") in a staccato-like pattern in 4/4 time. Ringo Starr's hi-hat in the final measure of this introduction introduces a swing beat that stays for the remainder of the song. The first eight-measure verse begins with McCartney singing "I'm fixing a hole where the rain gets in". The word "fixing" here is sung to a piano F major chord but on "hole" to a C augmented chord (which includes a G/A note that is a III (3rd) note in the thus predicted F minor scale) pivoting towards the Fm pentatonic minor scale on the more negative mood of "rain gets in". The Fm key melody in the verse is tinged both by blues flat 7th, and Dorian mode raised 6th notes. The harpsichord repeats the descending chromatic line in the F minor key in swing beat.