Love your Vocal only out takes from the Beatles...be wonderful if you had a vocal out take of Billy J Kramer and/or Gerry and the Pacemakers to compare with their recording mates the Beatles.
Antonio Jobim and his Brazilian Bossa Nova music seems to have influenced McCartney's genius on this fantastic song...this shows how the young McCartney's mind and ears were so mature, perceptive and finely-tuned into picking up on any form of great music of his day, including from Brazil.