Ob-La-Di, Ob-La-Da

The harmony of 'Ob-La-Di, Ob-La-Da' is deliberately simple and accessible, reflecting its ska-pop character. The song stays firmly rooted in Bb major throughout, relying on the three primary triads (I, IV, V) with minimal embellishment. The most sophisticated touch is the Bb7 secondary dominant leading to Eb in the verse, and the brief appearance of Ebm (minor iv) in the bridge — a chromatic colour borrowed from the parallel minor that adds a fleeting moment of bittersweetness. This simplicity is the song's strength: the uncluttered harmonic framework lets the infectious melody and rhythmic ska bounce take centre stage.

Paul McCartney began writing 'Ob-La-Di, Ob-La-Da' during the Beatles' stay in Rishikesh, India, in early 1968, where the band was studying Transcendental Meditation. Fellow student Prudence Farrow recalled McCartney, John Lennon, and George Harrison playing the song to lure her out of her room during intense meditation. McCartney crafted the song as a tribute to Jamaican ska, which was gaining popularity in Britain at the time. The character Desmond in the lyrics was a nod to reggae singer Desmond Dekker, who had recently toured the UK. The central catchphrase came from Jimmy Scott, a London-based Nigerian conga player whose stage act with his band involved calling out 'Ob la di' to the audience, who would respond 'Ob la da', finishing with 'Life goes on'.

Released on the landmark 1968 White Album, 'Ob-La-Di, Ob-La-Da' is Paul McCartney's exuberant tribute to Jamaican ska, built around a phrase borrowed from Nigerian musician Jimmy Scott. Despite never being released as a single in the UK or US, it topped charts across five countries and became one of the most recognizable melodies in pop music history.