Sabine Horstmann, instructor of Group Vocal Technique and voice at the Robert-Schumann Music University in Dusseldorf, has extensive experience working with singers of all ages. The focal point of her career is her intense work with a variety of choral groups, from children's choirs through adult choirs, and the further education of young conductors through her teaching of Group Vocal Technique and Conducting in Germany, Austria, Switzerland, and the United States. Horstmann studied voice at Folkwang Music University of Essen with Professor Jakob Stampfli. She studied church music at Musikhochschule Koln, and in Herford with Professor Wilhelm Ehmann and Professor Frauke Haasemann, receiving the title Director of Church Music in 1986.