Alter3, an autonomous humanoid robot, sang an opera while conducting a 35-member orchestra at the New National Theater Tokyo in Japan on Thursday. /VCG Photo

Developed by laboratories of Osaka University and the University of Tokyo, the Alter3 robot brought the performance to the public at a press conference and became a highlight of the whole opera robot project. /VCG Photo

The robot can change tempo and volume automatically according to its own judgment when performing, the developers said. And according to local media, it will perform a new opera with professional musicians and children chorus next year. /VCG Photo