Answer:
The letter helps us to understand Hamilton's abolitionist character.
Step-by-step explanation:
The content of the letter Hamilton wrote to John Jay reveals Hamilton's abolitionist character and helps us to understand the way he was portrayed in the musical. That's because the musical shows him as someone focused on justice and for freedom to be offered to all people.
In the letter Hamilton shows the importance of letting black people join the army and fight for what is good for the country to which they are also a part and where freedom can be sought even for them.