TeoTronico plays the piano like a pro. The robotic pianist has 53 fingers and managed to grab the attention of participants at the World Robot Conference (WRC), currently underway in Beijing, thanks to its musical prowess. Video cameras and sensors enable Teo to interact with its audience by identifying their facial expressions and gestures. In the 1980s, the Musical Instrument Digital Interface (MIDI) allowed electronic keyboards to play on a wide range of keys, but that was a machine functioning on its own. At the WRC 2017, a robot's interaction with a real-life object – a piano in this case – has struck a chord with the visitors.