It is my understanding that the Fisk Singers and their arranger referred to the songs as "Jubilee Songs," not spirituals. Correct me if I am wrong. We need to look at the newspaper accounts of the time the tours by Fisk and Hampton to get a better handle on the word "spiritual." The arranger for the Hampton singers apparently called them Cabin and Plantation Songs, but again verification is needed, it may not be the only appelation they applied.