This play along series with easy, popular, and also in part new melodies is thought to train your ears and your musical sense. It's not a question to play the notes 1:1. You rather shall learn to play simple melodies in a free and musical way. Therefore please do not be surprised if the notation partly is different from the fullplayback versions. Those versions only shall show you how the interpretation (particularly in repetitions of the themes) could sound. This is also the reason why we were canny with phrasing marks. So please play your version just as you feel and experience a totally new fun at playing and you will see how you will develop musically by contemplating notes and their interpretation.