Final answer:
Factors that did not contribute to the experiences of female musicians in the 1930s and 1940s included the call to return to pre-war roles and the confining Edwardian dress, as women had embraced their new freedoms and independence.
Step-by-step explanation:
What did not contribute to the experiences of female instrumentalists and singers during the 1930s and 1940s? During this period, many societal and cultural shifts influenced women in the music industry and beyond. These included newfound freedoms in fashion and social expression, the right to vote with the ratification of the Nineteenth Amendment, and the need for women to join the workforce during economic hardship and wartime. Despite these advancements, there remained a persistent belief that female employment was unnatural outside periods of crisis, and women faced significant discrimination and wage inequality. However, what did not contribute to their experiences was a call to return to pre-war roles or Edwardian dress, as women were not reacting positively to reverting to old norms after gaining new independence during the war effort.