Here in this article  by Ger Tillekens  about The Beatles chords,Bob Dylan is quoted saying what he thought in 1964 about The early Beatles music,he said that they were doing things nobody was doing and that their chords were outrageous,just outrageous and their harmonies made it all valid.
Here in Rolling Stone Magazine’s 100 Greatest Song Writers Bob Dylan( who is the number 1 greatest song writer,and John Lennon is number 3,and Paul McCartney is number 2.) is quoted about a car trip when he heard a lot of Beatles songs on the radio, he said they were doing things  and  that he knew they were pointing the direction where music had to go.