Ode to a Nightingale the words that dominate the poem. There is also an emphasis on words beginning with consonants, especially those that begin with "b", "p" or "v". These three consonants are relied on heavily in the first stanza, and they are used syzygically to add a musical tone within the poem. In terms of poetic meter, Keats relies on spondee throughout his 1819 odes and in just over 8% of his lines within "Ode to a Nightingale", including line 12: and line 25: To Walter Jackson Bate, the use of spondees in lines 31–34 creates a feeling of slow flight, and "in
Tercet the villanelle, where the initial five stanzas are tercets, followed by a concluding quatrain. A tercet may also form the separate halves of the ending sestet in a Petrarchan sonnet, where the rhyme scheme is ABBAABBACDCCDC, as in Longfellow's "Cross of Snow". For example, while "Cross of Snow" is indeed a Petrarchan sonnet, it does not follow the form of ABBAABBA CDCCDC. Instead, its form is ABBA CDDC EFG EFG. A tercet also ends sestinas where the keywords of the lines before are repeated in a highly ordered form. The tercet was introduced into English poetry by Sir Thomas Wyatt