Computer System for Designing Musical Expressiveness in an Automatic Music Composition Process

Abstract

Artificial Intelligent Systems have shown great potential in the musical domain. One task in which these techniques have shown special promise is in the automatic music composition. This article describes the development of an algorithm for designing musical expressiveness for a tonal melody generated by computer. The method employed is based on a model of self-recognition of the harmonic structures contained in the melody and, by means of the “harmonic function” carried by every single one of these, provides useful information for the dynamics. The article is intended to demonstrate the effectiveness of the method by applying it to some (tonal) musical pieces of the 18th and of the 19th century. At the same time it is going to indicate ways to improve the method.