I would say that the opera component for a solo performance is called ARIA.
This is an elaborated song for a solo voice, just one voice. It can be written for the main character focusing on his/her emotions. The term means "air" in Italian and it is connected to a melody by performed by a singer. It might be accompanied by an orchestra.
The Compromise of 1877 involved naming Rutherford B. Hayes as president in exchange for the removal of all troops in the southern states after the civil war
