In Edgar Allan Poe’s poem “The Bells,” how does the tone change from the beginning to the end?

"The Bells" portrays life in the tones of the bells and the words used to describe them. First we hear jingling sleigh bells, a happy group of friends out for a drive, perhaps around Christmas. Then wedding bells, more sedate, but joyous, rapturous even. Alarm bells, a fire, all the perils and ups and downs of life. And lastly the iron bells of a funeral procession, mourning the ping of a life. I would say "cheerful to sinister" but there is also an elemental of hope changing to bitterness as well.