👉 Repertoire is a concept in music theory that refers to the set of musical notes, chords, and scales used by a particular instrument or group of musicians in a piece of music. It encompasses both the physical structure of the instruments themselves (such as the body of a piano) and the technical aspects of playing them (such as fingerings and articulations). Repertoire can be derived from historical sources such as composers' biographies, but it is also often created by musicians based on their own experiences
