The Schillinger system of musical composition, named after Joseph Schillinger (1895–1943) is a method of musical composition based on mathematical processes. It comprises theories of rhythm, harmony, melody, counterpoint, form and semantics, purporting to offer a systematic and non-genre approach to music analysis and composition; a descriptive rather than prescriptive grammar of music.
While it influenced some prominent figures, such as Lawrence Berk (founder of the Berklee College of Music) and George Gershwin (likely[1] influencing the piece "I Got Rhythm Variations"), it began to fall out of favor in the 1960s after receiving criticisms for being over-complicated and pseudo-scientific,[2] and was removed from the Berklee curriculum.