SONG OF THE TOWERS, by Aaron Douglas, 1934, African American painting, oil on canvas. Painting alludes to the Great Migration of African peoples to the cities of the Northern US in the early 20th century. The four-panel series, ASPECTS OF NEGRO LIFE, was painted under the Public Works of Art Project (PWAP), for the New York Public Library's 135th Street branch, the Schomburg Center for Research in Black Culture (BSLOC_2017_20_158)