Music is an art form consisting of sound and silence. Elements of music are pitch (which governs melody and harmony), rhythm (and its associated concepts tempo, meter, and articulation), dynamics, structure, and the sonic qualities of timbre and texture.

The creation, performance, significance, and even the definition of music vary according to culture and social context. Music ranges from strictly organized compositions (and their recreation in performance), through improvisational music to aleatoric forms. Music can be divided into genres and sub-genres, although the dividing lines and relationships between music genres are often subtle, sometimes open to individual interpretation, and occasionally controversial. Within "the arts", music can be classified as a performing art, a fine art, or an auditory art form.

Theatre (or theater, see spelling differences) (from French "théâtre", from Greek "theatron", θέατρον, meaning "place of seeing") is the branch of the performing arts defined as simply as what "occurs when one or more human beings, isolated in time and/or space, present themselves to another or others." By this broad definition, theatre has existed since the dawn of man, as a result of human tendency for story telling. Since its inception, theatre has come to take on many forms, often utilizing elements such as speech, gesture, music, dance, and spectacle, combining the other performing arts, often as well as the visual arts, into a single artistic form. Modern Western theatre is dominated by realism, although many other forms, including classical and experimental forms, as well as Eastern forms, are frequently performed.