I'm, musically challenged so I don't know about mood and tempo, but "Stairway" brings back great memories of a mutual grope with Cathy McAllister at our Grade 10 dance
, but "Kashmir" is a cooler piece.
Once stole my parents car to see Led-Zep in Seattle, 1977 I think, got in a hell of a lot of trouble but the concert was waaaay worth it!.