 Ode to a Nightingale  was 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 combine two different types of lyrical poetry in an experimental way : the odal hymn and the lyric of questioning voice that respond to the odal hymn . This combination of structures is similar to that in " Ode on a Grecian Urn " . In both poems the dual form create a sort of dramatic element within the poem . The stanza forms of the poem is a combination of elements from Petrarchan sonnets and Shakespearean sonnets .