↑Hamm, Irving Berlin Early Songs, p. xxxiv: "The text of a novelty song sketches a vignette or a brief story of an amusing or provocative nature. ... noted for portraying characters of specific ethnicity or those finding themselves in certain comic or melodramatic situations, ..."
↑Axford, Song Sheets to Software, p. 20: "As sentimental songs were the mainstay of Tin Pan Alley, novelty and comical songs helped to break the monotony, developing in the twenties and thirties as signs of the times."
↑Tawa, Supremely American, p. 55: "... in the 1920s, novelty songs offset the intensely serious and lachrymose ballads. nonsensical novelty songs, reproducing the irrational and meaningless side of the twenties, made frequent appearances."