An automated music performance system driven by music-theoretic state descriptors, including roles, notes and music metrics, automatically abstracted from a musical structure, however composed or performed, for generating a unique digital performance of the musical structure, said automated music performance system comprising:
- a plurality of virtual musical instrument libraries, wherein each said virtual musical instrument library supports a set of music-theoretic state responsive performance rules automatically triggered by said music-theoretic state descriptors, including roles, notes and music metrics, automatically abstracted from the music structure to be digitally performed by said automated music performance system;
- and
- an automated virtual musical instrument library selection and performance subsystem for managing said virtual musical instrument libraries, including automated selection of virtual musical instruments and notes to be performed during a digital performance of said musical structure in response to said music-theoretic state descriptors.