 " 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 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 from Petrarchan sonnets and Shakespearean sonnets . 
 " Ode to a Nightingale " was probably the first of the middle set of four odes <a href='null_relcl' title='1'><mark>that</mark></a>Keats wrote following " Ode to Psyche " , according to Brown . <a href='dey_it' title='2'><mark>There</mark></a> is further evidence of this in the structure of the poems because Keats <a href='uninflect' title='3'><mark>combines</mark></a> two different types of lyrical poetry in an experimental way : the odal hymn and the lyric of questioning voice <a href='null_relcl' title='4'><mark>that</mark></a><a href='uninflect' title='5'><mark>responds</mark></a> to the odal hymn . This combination of structures <a href='drop_aux' title='6'><mark>is</mark></a>similar to that in " Ode on a Grecian Urn " . In both poems the dual form <a href='uninflect' title='7'><mark>creates</mark></a> a sort of dramatic element within the poem . The stanza forms of the poem <a href='drop_aux' title='8'><mark>is</mark></a>a combination of elements from Petrarchan sonnets and Shakespearean sonnets . 
 Ode to a Nightingale  was probably the first of the middle set of four odes Keats wrote following " Ode to Psyche " , according to Brown . It is further evidence of dis in the structure of the poems because Keats combine two different types of lyrical poetry in an experimental way : da odal hymn and the lyric of questioning voice respond to tdaodal hymn . This combination of structures 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 a combination of elements from Petrarchan sonnets and Shakespearean sonnets .