While further pondering the points of overlap between poetry and lyrics, I realized that in my previous post I had failed to cover an important idea: sound lyrics.
A Division of Forms, or Poetry is Poetry and Lyrics are Lyrics and Never The Twain Shall Meet
You would be justified in regarding statement contained within the secondary title above with a certain degree of skepticism. After all, poetry and lyrics do bear some striking superficial similarities. Both are often rhymed. Both are often rhythmic. Both can achieve an elegance virtually unmatched in prose.
The Discerning Lyricist 