The intro to stairway is a 6-string. But yeah, they're tuned the same as 6 strings...the bottom four extra strings are the octaves, and the top two are the same pitch as the normal string./
On the song remains the same he uses the 12 string for the intro, i know it was a 6 string on the record.
Hmm maybe i'm wrong, i'll have to watch it again. Yep im getting doubts that he used the 12 string in the middle rhythm section. But im sure he used the 12 string in the intro on that dvd.......no he didnt........yes he did.....not he didnt.