Not exactly trad, but there's White Rabbit, by the Jefferson Airplane. When the men on the chessboard/Get up and tell you where to go/And you've just had some kind of mushroom/And your mind is moving low/Go ask Alice/I think she'll know

Multiple postings to YouTube. Lyrics at http://www.sing365.com/music/lyric.nsf/White-Rabbit-lyrics-Jefferson-Airplane/7109AE560A05F54748256BF40008120A