Since it fits with the discussion, I have to point out one of my favorite examples of Dylan doing something with a lyric that few others would try.

On his most recent album, "Love and Theft" is a song called "Po' Boy".

In one verse is the line:

The game is the same - it's just up on a different level

In a later verse, occupying the same portion of the melody as the line above, is the line

By the way, what happened to that poison wine?" She says, "I gave it to you, you drank it."

Great, fun song....

Scott