Robots are invading the symphony hall, said Kevin Ryan at Inc. YuMi, a two-armed robot built by Swiss robotics company ABB, recently conducted a performance of the Lucca Philharmonic Orchestra in Pisa, Italy. The 84-pound bot learns tasks by recording and mimicking them, "without any coding" required. It has wrists, elbows, and shoulders, giving its movements fluidity similar to a human being's.