They can perform synchronized, choreographed routines. But he did perform it in concert. However, proximal methods will generally perform well in most circumstances. The two would also perform together live. The system did not perform as effectively as expected, however. The album did not perform well as anticipated. It did not perform well commercially. At times the individual can perform actions unknowingly. However, such an engine could never perform any usable work. They also perform better at verbal learning. The player can also perform jump attacks. They perform on stage together incognito, and become lovers. They would not perform live together again for 19 years. Until 2005, they did not perform live concerts. Also, it does not perform well empirically.