![](/images/unavailable1000x562.png)
![](/images/unavailable200x300.png)
Robert Helpmann explains, and dancers from the Covent Garden and Sadler's Wells troupes demonstrate, basic steps and movements of the dance as a new ballet is rehearsed and performed.
Robert Helpmann explains, and dancers from the Covent Garden and Sadler's Wells troupes demonstrate, basic steps and movements of the dance as a new ballet is rehearsed and performed.