This is a variation of Common Measure and consists of three rhymes with alternating meter,
a and c with iambic tetrameter, (4 feet), and
b with iambic trimeter, (3 feet), giving a rhyme scheme of:>
x X x X x X x a x X x X x b x X x X x X x c x X x X x b x X x X x X x a x X x X x b x X x X x X x c x X x X x b
