One of the significance in The Beatles' music is the beautiful harmonies. Singing in harmony means to sing the at least two different notes at the same time. There had been bands who adapted the use of singing in harmony from The Beatles during the 1960's. However, their harmonies were second to none, and were used mostly in all of their songs. Who sings which note varies from songs depending on who the main vocal of that particular song. However, it is mostly Paul singing the highest note, John singing the middle note and George singing the lowest note.
Harmony breakdown of "All My Loving" by Galeazzo Fruduwa.
Harmony breakdown of "All My Loving" by Galeazzo Fruduwa.