Great video! I watched the whole recording. "せせらぎ" always the best station melody of Yamanote Line. A child is having the journey with his/her parents. One of my favorited part: @1:02:23: (Child) 「次は.......?」 (Dad)「有楽町」🙂 And someone is using Canon hi-end DSLR to taking photographs. I'm pretty sure the command dial sound is come from a Canon camera body.