The stornello is an Italian verse form dating back to at least the 15th century. The most common modern interpretations list it as a tercet form in which all three lines rhyme, with hendecasyllabic lines. There are other interpretations of the form from older time periods, including a couplet form still seen in Sicily today.
The rispetto is a 15th century Italian verse form based around two rhyming quatrains. It usually has a rhyme scheme of abab ccdd, though the second verse can vary a bit. The most defining feature of the rispetto is that it is always a poem expressing respect. In fact the name, rispetto, literally means “respect.”
Barzelletta was a popular verse form utilized by Italian frottola composers, intended to entertain audiences with wit and rhythm, that has only rarely been applied to poetry outside of music. It is a subgenre of the frottola, a type of music that preceded the madrigal as a popular form of Italian secular music.