Origin of rhyme scheme
Examples from the Web for rhyme scheme
First variant: There is no verso libre, and the rhyme-scheme is a b b c a d d c.
The rhyme-scheme is called a couplet, because of the way in which two lines are linked together.
Dcimas are strophes of ten octosyllabic verses with the rhyme-scheme a b b a a c c d d c.
But here the rhyme-scheme provides a sort of unpardonable excuse.Browning's Heroines|Ethel Colburn Mayne
The even verses are usually in assonance, although the verses may have the rhyme-scheme a b a b.