A villanelle is a poetic form which entered English-language poetry in the 1800s from the imitation of French models. The word derives from the Italian villanella from Latin villanus (rustic). A villanelle has only two rhyme sounds. The first and third lines of the first stanza are rhyming refrains that alternate as the third line in each successive stanza and form a couplet at the close. A villanelle is nineteen lines long, consisting of five tercets and one concluding quatrain. In music, it is a dance form, accompanied by sung lyrics or an instrumental piece based on this dance form.