The VIRELAI is an old French form that combines a simple rhyme scheme with strict syllable counts. It is a 9 line poem form with syllable counts of 5, 5, 2, 5, 5, 2, 5, 5, 2 -- and a simple rhyme pattern of a, a, b, a, a, b, a, a, b. - Here is a sample: https://theprose.com/post/722014/coulrophobia-fear-of-clowns