マックス・ブルッフ
In 1901, Kuyper became the first woman to be admitted to study composition at the Meisterschule für Komposition, led by Max Bruch. She was quite productive as a composer during her master classes with Bruch, including creating a violin sonata, a ballad for cello and orchestra, and a serenade for orchestra. Max Bruch became a great champion of and mentor to Kuyper, and they stayed connected even through his very old age. He conducted many of her compositions, recommended her for stipends from the Dutch government, and even helped her obtain German citizenship.