The humor of jazz is rich and many-sided. Some of it is obvious enough to make a dog laugh. Some is subtle, wry-mouthed, or back-handed. It is by turns bitter, agonized, and grotesque. Even in the hands of white composers it involuntarily reflects the half-forgotten suffering of the negro. Jazz has both white and black elements, and each in some respects has influenced the other. It's recent phase seems to throw the light of the white race's sophistication upon the anguish of the black.