Marleen Asberg is a violinist in the famous Koninklijk Concertgebouworkest. But she also studied singing with Margreet Honing in Amsterdam. Nowadays she is coached by Maarten Koningsberger. As a lyrical soprano she regularly performs with colleagues from the Concertgebouw Orchestra. She sang arias with them, including Puccini, Bellini and Gounod. She also participated in many productions in which she could be heard as a violinist as well as a singer. 

The British / Dutch pianist Kelvin Grout rwon his first piano competition at the age of four. He studied with Graham Johnson, Geoffrey Parsons and Gerald Moore. After participating in the Wigmore Hall masterclasses by Elisabeth Schwarzkopf, he was invited to her home in Zurich, where he worked for six years as an assistant pianist and built up an international career as a song accompanist. His career has brought him all over the world with countless radio, television and CD recordings.