The document discusses primitivism in music, highlighting its tonal nature and connections to exoticism, nationalism, and ethnicism, with notable composers like Stravinsky and Bartok. It further delves into neo-classicism as a response to emotional excesses and features prominent figures such as Prokofieff and Gershwin, noting their contributions and significance. Gershwin, recognized as the 'father of American jazz,' is particularly noted for his influential works and collaborations.