 Ode on Indolence  rely on ten line stanzas with a rhyme scheme that begin with a Shakespearian quatrain ( ABAB ) and end with a Miltonic sestet ( CDECDE ) . This pattern is used in " Ode on Melancholy " , " Ode to a Nightingale " and " Ode on a Grecian Urn " , which further unify the poems in their structure in addition to their themes .