At the advanced level, there is a strong emphasis on the refinement of the technique. Ballet barre en pointe stresses transfer of weight and balances to build increased strength in the feet, turnout in the legs and core strength. Center work includes more complex combinations including pirouettes in open positions. At this level, a dancer should be able to execute allegro movements en pointe with sharpness and attack, and adagio movements with softness and fluidity.  Variations from the classical repertoire are learned and virtuosity en pointe is developed.