The virelai

is a French poetic form with alternating rhymes and line lengths. Here are basic guidelines:

nine lines per stanza

lines one, two, four, five, seven, and eight have five syllables

lines three, six, and nine have two syllables

the five-syllable lines rhyme with each other and the two-syllable lines rhyme with each other to make the following rhyme patter: aabaabaab

the end rhyme for the short lines continues on in the following stanza

the final stanza’s short-line end rhyme should be the same as the long-line end rhyme in the opening stanza (to complete the end-rhyme circle)

Note on stanzas: This form can contain as few as two stanzas to infinity (if you could write that many).

Helpful  LInks

https://www.writersdigest.com/write-better-poetry/virelai-poetic-forms

Virelai