"Poems no less than prose are made of sentences, and expectations of sentences (by the reader), and avoidances of sentences (by the writer). But they are also made of lines that alter our experience of sentences, by foregrounding the sounds of the words, phrases, and pauses which make up sentences but which we don't attend to until these sounds are highly organized and orchestrated. The primary instrument of this orchestration is the lines, and lines can also be arranged in stanzas, which may further foreground the lines by signifying their own organization independent of the sentences. The difference between metered and unmetered lines, in the strictest stanza forms to the free-est verse, is no more than the difference between the degree of foregrounding of the lines against the sentences, and therefore the degree to which our attention to those sentences is complicated." Esto es parte del breve pero excepcional ensayo de Michael Ryan. Lo pueden leer completo en http://poets.org/viewmedia.php/prmMID/19268
Celarg 2003(José Manuel, Maite, José, Teresa, Álida, Isabel) 
Tapara (Beatriz, Néstor, Krina, José, Vicente)
