The musical's score, an impressive mixture of Irish jigs, 19th century work songs and jazz, reinforces the musical's themes of racial harmony and racial division, while driving the show's energy forward. One group number, 'Why Should I Die in Springtime,' in which the Irish characters lament having to fight in the Civil War, is immediately answered by 'I'll Be a Soldier,' in which the Black characters declare they would fight if America would let them. It's a brilliant battle in musical form. Bill T. Jones's expansive choreography similarly takes on these themes. Jones combines Irish step dancing, tap dancing, modern break dancing and Haitian Yanvalou, yet creates distinctive dances for the Irish characters and the Black characters. The result is character-motivated choreography that is astounding in its density and gorgeous in appearance.