For any one in the future who needs this,
It gives general examples of brain benefits linked to musical training.
Recent brain research has shown some surprising benefits as a result of formal musical training. Learning to play a musical instrument appears to develop parts of the brain that can even influence academic results. The studies indicate that the earlier a child begins training, the more benefits there are. One such study showed that children who began musical studies before the age of seven had a more developed brain in the region where language production and auditory processing take place. Scientists believe there is mounting evidence to show that early musical training can improve brain function.
The first and the third sentences contain parallel structures. Parallel structure, or parallelism, is the repetition of the same grammatical structure or form within a sentence, so it becomes more balanced, and, therefore, more readable and clear to understand.
In the first sentence, the parallel structure has been used in the comparison: "... would make war <em>rather than let</em> the nation survive and accept war<em> rather than let</em> it perish..."
In the third sentence the same grammatical form has been used too: "<em>all dreaded it </em>(1) <em>all sought to</em> avert <em>it </em>(2)."