05:50More or LessLennon or McCartney?BBC World Service Duration: 9 minutes Sat 8th Dec 2018, 05:50 on BBC World Service Europe and the Middle EastAvailable for over a yearListen nowHow statistical modelling can work out which Beatle wrote which song. Show more GenresFactualMusicClassic Pop & RockFormatsMagazines & ReviewsBrandMore or Less Source: BBC Online