This Impressionist painting is one of the many studies Degas made of ballet dancers in Paris, usually in backstage or rehearsal moments, rather than in performance. Here a group of four dancers in pink tutus waits in the wings for a signal.
Degas focused on ballet dancers, women bathing, horses at the track (again, prior to or after the race, not during), and middle-class gentlemen at work or play. The latter is not nearly as famous or popular — or important — as the three initial categories.
But, frankly, it is simply beautiful, given Degas’ use of shape, color, light and ratio.