The four recorder players of BRISK are dedicated teachers. Both together and individually, they gave master classes, courses and workshops in many European countries, Canada, the United States, and Taiwan. They are highly experienced teachers, and have all worked at several Dutch music schools and conservatories. They are true ambassadors of the recorder. Three of the four quartet members were driving forces in the organization of the SONBU (the Open Holland Recorder Days Utrecht), a festival with a contest for amateur recorder players from all over the world.