Marjoleine studied vocal jazz/performaning arts at the Royal Conservatory in The Hague. Her final exam (1999, theater the Tobbe) contained 4 of her own compositions. After her studies in The Hague Marjoleine followed masterclasses and workshops from The New York Voices and Cathrine Sadolin, and levels 1 and 2 in EVTS (Estill Voice Training System).
Erik van Lier and Henk Meutgeert about Marjoleine : ´Fantastic vocal talent, great improvisation too´ (jury report bigband competition Velsen 2002). Greetje Kauffeld gave her a compliment for her own composition ´Something has changed!´ during the C.v.A. Bigband Festival 2000 in The Hague.