Opposite song

I started working on a new song that starts with the lines,

"I know the answers,
but the questions aren't so clear,
Don't have any problems,
until they appear."

As I started working further on this song, I got into the opposite mode and writing the rest of the song was easy. I've used this technique in writing the song "Contradiction Blues" and find it an easy way to write.

One of the best examples of this is the Tom Waits song, San Diego Serenade. Each line in the song has the structure, "I never saw the ...., til I ..."