This thread is inspired by the other thread about Revolver. In the thread a member writes about the mixolydian mode being used by the Beatles. And Ive read how they used funny unorthodox chord progressions in a even humorous way at times. George used a drone type mode in song.Paul said that they purposely tried to write a song on one note. Several other examples of pretty in depth musical structures were used too Im sure. The more I read about it .. the theory side.. the more I am struck to how complex this music is.Now I realize that the Beatles were not musicians in the classical sense.But I find it hard to believe that they just stumbled upon the unusual things they were doing by accident .Dont think any read music.But I wonder just how much they were aware of and studied the theory behind what they did. Or even before they did it? Or was it mainly just something they were soaking up like sponges by ear? How much did Mr martin perhaps " teach" them in this way? Or other real musicians ( dont get offended..the Beatles WERE musicians) that they were around inthe studio? I wonder if John ever looked over at a music stand and said.. " Ohh.. I like that mode.. what is that?".. or " What does that mean? as far as the theoretical aspect goes? What do you guys think?