Abstract #300120

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JSM 2003 Abstract #300120
Activity Number: 190
Type: Invited
Date/Time: Tuesday, August 5, 2003 : 8:30 AM to 10:20 AM
Sponsor: Section on Statistical Computing
Abstract - #300120
Title: Music Plus One: A System for Interactive Accompaniment
Author(s): Christopher S. Raphael*+
Companies: University of Massachusetts, Amherst
Address: Lederle Grad. Res. Tower, Amherst, MA, 01003,
Keywords: music ; hidden Markov model ; Bayesian Belief Network ; accompaniment
Abstract:

I discuss my ongoing work in creating a computer system that plays the role of a sensitive musical accompanist in a nonimprovisatory composition for soloist and accompaniment. My accompaniment system synthesizes a number of knowledge sources including the musical score, online analysis of the soloist's performance, and the musical interpretations demonstrated by both the soloist and accompanist in rehearsal. I present a probabilistic model--a Bayesian Belief Network that represents these disparate knowledge sources in a coherent framework. During live performance, my accompanist "listens" to the soloist by using a hidden Markov model and makes principled real-time decisions that incorporate all currently available information. I will provide a live demonstration of my system.

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