Tercet in the 16th century. It was employed by Shelley and is the form used in Byron's "The Prophecy of Dante". Tercet A tercet is composed of three lines of poetry, forming a stanza or a complete poem. English-language haiku is an example of an unrhymed tercet poem. A poetic triplet is a tercet in which all three lines follow the same rhyme, AAA; triplets are rather rare; they are more customarily used sparingly in verse of heroic couplets or other couplet verse, to add extraordinary emphasis. Other types of tercet include an enclosed tercet where the lines rhyme in an
Ode to a Nightingale probably the first of the middle set of four odes that Keats wrote following "Ode to Psyche", according to Brown. There is further evidence of this in the structure of the poems because Keats combines two different types of lyrical poetry in an experimental way: the odal hymn and the lyric of questioning voice that responds to the odal hymn. This combination of structures is similar to that in "Ode on a Grecian Urn". In both poems the dual form creates a sort of dramatic element within the poem. The stanza forms of the poem is a combination of elements