Scientists use AI to work out which Beatle penned some of their most contested songs

John Lennon and Paul McCartney were one of the Twentieth Century's most celebrated musical writing partnerships. Exactly what elements each of the pair contributed to their joint-credited hits has been a matter of much debate among fans, however. Now, researchers have used AI to work out which Beatle penned the music for a number of their most disputed songs. Scientists from Harvard and Dalhousie University in Canada trained their software using the Beatles back catalogue to recognise 137 unique musical patterns. These patterns, including notes, chords, and other musical motifs, were applied to eight disputed pieces of music to work out which of the Beatles wrote them.