The best answer for this question would be:
The music symbolizes pleasure and relaxation, so it brings a
quietly comfortable, contented mood to the poem.
Music stimulates the emotions of people that listen to it,
when attach to other artstic aspects like poetry it enhances the overall mood.
The echoing sound of his voice shows his excitement that his brother is communicating
Answer: Nor
When to use neither and nor in a sentence?
A “nor” usually follows a “neither” when they're used in the same sentence (1). For example, you might say: I like neither hot dogs nor ketchup. You can also use “nor” if you're talking about more than two items, but you have to repeat “nor” after each element
