crystalline:  crystal clear; icy

runic: using mysterious ancient symbolism

tintinnabulation: a Poe-created word to describe the ringing of bells 

ditty: a short rhyme or song

gloats: gazes with pride and satisfaction

sounding cells: small rooms, like those in the bell tower

euphony: a pleasant sound

voluminously: greatly; largely; loudly

rapture: delightful feeling

impels: pushes onward

alarum: alarm

brazen: rudely bold

turbulency: violent movement; confusion; disorder

affright: fear

clamorous: noisy

expostulation: a strong protest

resolute: determined

endeavor: determined effort

palpitating: throbbing

monody: a mournful sound; death song

melancholy: gloomy; sad

monotone: a dull sound that doesn't change

ghouls: horrible demons; evil graveyard spirits

paen: a song of praise or triumph

knells: rings slowly and loudly, to warn of a funeral or tragedy