He obtained his BMus degree from the University of Pretoria in 1967 under the guidance of Hennie Joubert.
1967年在亨利?朱伯特的指导下获得了比勒陀利亚大学的音乐学士学位。
2
Neither me nor Hennie had any experience of Zambia, but we had heard good things, and we were keen to do a trip with a difference.
无论是我还是葛登有任何赞比亚的经验，但我们听到了好东西，我们都渴望做一个与众不同的旅程。
3
From 1981 John Roos has closely collaborated with his mentor, Hennie Joubert, organising and presenting the international music competitions at Unisa in Pretoria.