music theory
study of the theoretical aspects of music and its notation
AI overview
Music theory is the study of how music works—examining things like notes, rhythm, harmony, and the systems we use to write music down. It matters because it helps musicians understand the principles behind the sounds they hear and create, making it easier to compose, perform, and communicate musical ideas with others.
AI-generated from the Wikipedia summary — may contain errors.
Article
Jubal, Pythagoras and Philolaus engaged in theoretical investigations, in a woodcut from Franchinus Gaffurius, Theorica musicæ (1492)
Music theory is the study of theoretical frameworks for understanding the practices and possibilities of music. The Oxford Companion to Music describes three interrelated uses of the term "music theory": The first refers to the "rudiments" needed to understand music notation such as key signatures, time signatures, and rhythmic notation; the second is a study of scholars' views on music from antiquity to the present; the third is a sub-topic of musicology that "seeks to define processes and general principles in music". The musicological approach to theory differs from musical analysis "in that it takes as its starting-point not the individual work or performance but the fundamental materials from which it is built."