Released on the compilation album Past Masters Volume Two, 'Rain' stands as a definitive example of The Beatles' mid-to-late period songwriting and performance. Recorded during the band's London sessions, the track showcases their evolving studio techniques and the distinctive vocal harmonies that became their signature. As a staple of their live repertoire and a frequent BBC broadcast favorite, the song captures the raw energy and collaborative spirit of the group during their creative peak. Its enduring popularity reflects its place within the broader canon of rock music, cementing The Beatles' status as pioneers of the genre.