June 1 (Bloomberg) — During a final rehearsal of his new ballet, “On the Dnieper,” Alexei Ratmansky took center stage amidst the set’s cherry blossoms and wooden fences. The choreographer carefully watched his lithe principal dancers — Marcelo Gomes, Veronika Part and Paloma Herrera — become entangled in an emotionally convoluted yet elegant pas de trois.
The centerpiece [...]