How are "The Tell-tale Heart" and "The Raven" both by Edgar Allen Poe related in theme, character or tone

Answer 1

They both deal with guilt issues - the Raven is a symbol of all that the narrator has done wrong and can't escape, and the Tell-tale Heart is about a man who confesses to murder because he thinks he can still hear the beating heart of his dismembered victim. They also focus on sounds (Nevermore and the heart beat) that are dark, guilt-inspiring, and inevitable.

Answer 2

One is a poem, one isn't. One deals with a murder, one doesn't.

About the only similarity between the two other than the author is that neither contains any 'comic relief'.