In the week leading up to our celebration of International Women's Day, a series of essays celebrating five women who have been unacknowledged movers and shakers in the world of classical music down the ages. Each of these women overcame societal expectations or personal adversity to have real influence on the music of their day, and subsequently ours.

Lady Maud Warrender was a respected performer, and one of the most influential patrons of music in the early twentieth century, all while living with her lesbian lover, the opera singer Marcia Van Dresser. Her life, lived very much in the public gaze, but with whole areas that were kept so discreetly private that it is hard to find any concrete information, was an example of a tightrope successfully and deftly trodden - a perilous path between respectability and scandal.

Dr Kate Kennedy tells the story of this extraordinary woman who wielded more power in the musical world than many male professional concert promoters put together.

Produced by Simon Richardson

To find out more about Radio 3's International Women's Day programming follow @BBCRadio3 and the hashtag #womensday.