Here you go!
“One Summer’s Day” is the song that is currently on the tracks in the world. It is the main theme song of Spirited Away.
“The Sixth Station” is the actual song that plays when Chihiro is riding the train to get to Zeniba’s swamp. You can hear it at 4:00 of the video.
Both songs were written by Joe Hisaishi.
Thanks for watching!