The villanelle has no established meter, although most 19th-century villanelles have used trimeter or tetrameter and most 20th-century villanelles have used pentameter. The essence of the fixed modern form is its distinctive pattern of rhyme and repetition. The rhyme-and-refrain pattern of the villanelle can be schematized as A1bA2 abA1 abA2 abA1 abA2 abA1A2 where letters ("a" and "b") indicate the two rhyme sounds, upper case indicates a refrain ("A"), and superscript numerals (1 and 2) indicate Refrain 1 and Refrain 2.

A villanelle is a poetic form which entered English-language poetry in the 19th century from the imitation of French models.[1] The word derives from the Italian villanella from Latin villanus (rustic).[2] A villanelle has only two rhyme sounds. The first and third lines of the first stanza are rhyming refrains that alternate as the third line in each successive stanza and form a couplet at the close. A villanelle is nineteen lines long, consisting of five tercets and one concluding quatrain.[3] In music, it is a dance form, accompanied by sung lyrics or an instrumental piece based on this dance form.[

Bob of QF wrote:
I like it, Kowboy.

But what is not generally known about hair, during middle and old age?

It is not so much that it's vanishing, is that it's migrating south.

Kowboy wrote:
My hair is starting to wave. Goodbye.