Jump Jim Crow was born in Pittsburgh, when a vaudeville performer saw an African American deck hand dancing, imitating a crow's flight, and singing, "turn about and wheel about and do just so, and everytime I turn around I jump Jim Crow". Apparently, (I read this in Lomax.) the dance had African origins.
The vaudeville performer borrowed the deckhand's clothes, blacked his face with burnt cork, and the rest is history.
Not, I'm afraid, one of our city's proudest moments.
Now, I would mention Stephen Foster's songs, most especially Angelina Baker, "Angelina likes the boys, as far as she can see 'em. She used to run old master round, to ask him for to free 'em."
Jean Redpath recorded "The Slave's Lament", by Robert Burns. Of course it's beautifully done.