Études
- Choreographer: Harald Lander; Staged by Jean Sarelli (1979, 1980); staged by Josette Amiel (1988)
- Music: Knudage Riisager after Czerny
- Costumes: Stephen F. Petipas. Costumes constructed by Janet Groom
- Lighting: Design by Harald Lander, recreated by Pat Simmons
- Set Design: Decor by W. Oren Parker
- PBT Performance Date: January 26-28, 1979; March 14-16, 1980; April 7-10, 1988;