Toward an emotionally intelligent piano: Real-time emotion detection and performer feedback via kinesthetic sensing in piano performance

A system is presented for detecting common gestures, musical intentions and emotions of pianists in real-time using kinesthetic data retrieved by wireless motion sensors. The algorithm can detect six performer intended emotions such as cheerful, mournful, and vigorous, completely and solely based on low-sample-rate motion sensor data. The algorithm can be trained in real-time or can work based on previous training sets. Based on the classification, the system offers feedback in by mapping the emotions to a color set and presenting them as a flowing emotional spectrum on the background of a piano roll. It also presents a small circular object floating in the emotion space of Hevner’s adjective circle. This allows a performer to get real-time feedback regarding the emotional content conveyed in the performance. The system was trained and tested using the standard paradigm on a group of pianists, detected and displayed structures and emotions, and it provided some insightful results and conclusions.