End rhymes are not enough. Every word-sound in a poem should find an echo in another, neighbouring word's sound to achieve what Ezra Pound called melopoeia. (This is something like what the Welsh call Cynghanned.)

End rhymes are not enough. Every word-sound in a poem should find an echo in another, neighbouring word's sound to achieve what Ezra Pound called melopoeia. (This is something like what the Welsh call Cynghanned.)