ABSTRACT
The computer has been applied to musical tasks for over four decades, but with different degrees of success depending on the problem to which it is assigned. Highly sophisticated sound synthesis architectures and software environments are the undeniable achievements of computer science. Progress in applied digital signal processing has also been varied and considerable. By contrast, an efficient multilevel representation of musical signals still remains an unresolved issue. Many aspects of music representation continue to be debated or remain obscure. High-level representations of music have tended to be rather neglected.
