Falling Down Stairs Although he knew the music well, Mark Morris had never thought to choreograph a dance based on Bach's Third Suite. He felt the music was complete in itself. But through a close collaboration with Yo-Yo Ma, an astonishing dance emerges - a true three-way collaboration between musician, dancers and filmmaker Barbara Willis Sweete. SarabandeA great musician instinctively builds a complex and intimate relationship with his listeners. Director Atom Egoyan's dramatic film explores a number of such relationships, revealing the generosity of spirit and love that flow from Yo-Yo Ma's performance of Bach's Fourth Suite.