ロイヤル・コンセルトヘボウ管弦楽団
Marianne has participated in an audition training with Petra van der Heide (harpist from the Dutch Royal Concertgebouw Orchestra). In this course she won the first prize which resulted in her participation in two concerts with the Dutch Royal Concertgebouw Orchestra. She also played several times in productions with the Dutch Radio Philharmonic Orchestra.