Final answer:
The spiritual song "Go Down Moses" was directly connected to the Underground Railroad and served as a signal for enslaved people to escape to freedom.
Step-by-step explanation:
One of the songs directly connected to the Underground Railroad is the spiritual called "Go Down Moses." Harriet Tubman, the famous Underground Railroad conductor, used this song as a signal to enslaved people she wanted to help escape to freedom. The song resonated with enslaved Black people in America as it spoke to their longing for freedom.