Fulcher shows how these composers furthered their ideals through the specific language and means of their art, rejecting the dominant cultural exclusions or constraints of conservative postwar institutions and creatively translating their cultural values into terms of form and style. This was not only the case with Debussy in wartime, but with Ravel in the twenties, when he became a socialist and unequivocally refused to espouse a narrow, exclusionary nationalism. It was also the case with the group called "Les Six," who responded culturally in the twenties and then politically in the thirties, when most of them supported the programs of the Popular Front. Others could not be enthusiastic about the latter and, largely excluded from official culture, sought out more compatible movements or returned to the Catholic Church. Like many French Catholics, they faced the crisis of Catholicism in the thirties when the church not only supported Franco, but Mussolini's imperialistic aggression in Ethiopia. While Poulenc embraced traditional Catholicism, Messiaen turned to more progressive Catholic movements that embraced modern art and insisted that religion must cross national and racial boundaries.
Fulcher demonstrates how closely music had become a field of clashing ideologies in this period. She shows also how certain French composers responded, and how their responses influenced specific aspects of their professional and stylistic development. She thus argues that, from this perspective, we can not only better understand specific aspects of the stylistic evolution of these composers, but also perceive the role that their art played in the ideological battles and in heightening cultural-political awareness of their time.