Tone is the attitude writers express through words they choose. Note that mood is the specific feelings that the reader gets from the authors text. The tone of Lincolns speech is sorrowful for the lost soldiers and determined to persuade his audience to take action.
The answer to your question would be that the best example of parallelism is the following sentence: The mud covered his hands. It covered his face. It covered his jeans. Parallelism, aka parallel structures or constructions, is a balance between one or more sentences of similar phrases or clauses that also have the same grammatical structure.
