The Performance Worm: Real Time Visualisation of Expression based on Langner's Tempo-Loudness Animation
Simon Dixon, Werner Goebl, Gerhard Widmer · University of Michigan Library Repository · 2002
In an expressive performance, a skilled musician shapes the music by continuously modulating aspects like tempo and loudness to communicate high level information such as musical structure and emotion. Although automatic modelling of this phenomenon remains beyond the current state of the art, we present a system that is able to measure tempo and dynamics of a musical performance and to track their development over time. The system accepts raw audio input, tracks tempo and dynamics changes in real time, and displays the development of these expressive parameters in an intuitive and aesthetically appealing graphical format which provides insight into the expressive patterns applied by skilled artists.