Broken rhymes are rhymes during which just one phrase is divided throughout lines (ordinarily with a hyphen) in an effort to allow it to be rhyme with A further phrase. This really is fairly uncommon, but it is not unheard of. This poem follows the common form of the ballade. https://ricardoopoli.bloggactivo.com/27020722/the-smart-trick-of-types-of-rhymes-in-poems-that-no-one-is-discussing