Actually that is interesting even though it had not much to with trains. Always nice to know others opinions about music. I saw Chicago in 1986 in SLC after Peter Cetera left the band(or was asked to leave the band)(depending on the story that you are more favorable to agree with).
Though I went with the intention to hear Peter Cetera sing, I was really impressed with the brass section, first time i had ever seen a trombone player do a from flip in the middle of playing a song. They were good none the less, they are one of the greatest band's ever. My opinion only.
Still a Student,
Dave