The Schillinger System of Musical Composition, named after Joseph Schillinger, is a method of musical composition based on mathematical processes. It comprises theories of rhythm, harmony, melody, counterpoint, form, and semantics (emotional meaning, as in movie music).
It offers a systematic and non-genre specific approach to music analysis and composition, a descriptive rather than prescriptive grammar of music. The Schillinger System might have served as a road map for many later developments in music theory and composition. Instead, it languished in relative obscurity”