In 1903, she composed a substantial harp solo called "Légende", inspired by the poem "Les Elfes" by Leconte de Lisle. The same year, Renié presented eleven-year-old Marcel Grandjany to the Conservatoire, but Hasselmans denied him admittance; the next year, Grandjany was accepted as a student but not allowed to compete. This was due to the growing animosity that Hasselmans had for Renié as he realized his young female student was becoming greater than himself. At age thirteen, the first time he was permitted to enter the competition, Grandjany won the Premier Prix. Following his win, he enjoyed a long and successful career as he introduced the Renié method to the United States at the Juilliard School.