Ebony and Ivory "Billboard" Hot 100 charts. At the simplest level, the song is about the ebony (black) and ivory (white) keys on a piano, but also deals with integration and racial harmony on a deeper, human level. The title was inspired by McCartney hearing Spike Milligan say "black notes, white notes, and you need to play the two to make harmony, folks!". The figure of speech is much older. It was popularised by James Aggrey in the 1920s, inspiring the title of the pan-African journal "The Keys", but was in use from at least the 1840s. Written by McCartney alone, the song
Paul McCartney and Wings Level and later founded the Christian-oriented Joe English Band. Undeterred by their departure, Wings released the already-completed McCartney–Laine ballad "Mull of Kintyre", an ode to the Scottish coastal region where McCartney had made his home in the early 1970s. Its broad appeal was maximised by a pre-Christmas release. It became an international hit, dominating the charts in Britain (where it was Wings' only number 1 single), Australia and many other countries over the Christmas/New Year period. Ultimately, it became the first single to exceed sales of 2 million in the UK, eclipsing the previous all-time best-seller (the Beatles' "She Loves