Complex sentence: She suffered a serious illness and retired from the music industry in the 1930s, not before she recorded "My Man o' War", described by one music journalist as "a composition stuffed with rococo suggestiveness".
Split into simpler sentences: She suffered a serious illness and retired from the music industry in the 1930s. Not before she recorded "My Man o' War", described by one music journalist as "a composition stuffed with rococo suggestiveness".