... pointing out these germs and resemblances, the value of this poem still is found in its originality. The progressive music, the scenic detail and contrasted light and shade,—above all, the spiritual passion of the nocturn, make it the work of an informing genius. As for the gruesome bird, he is unlike all the other ravens of his clan, from the "twa corbies" and "three ravens" of the balladists to Barnaby's rumpled "Grip." Here is no semblance of the cawing ... — The Raven • Edgar Allan Poe
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