Music is an art. form whose medium is sound. Common elements of music are pitch (which governs melody and harmony), rhythm (and its associated concepts tempo, meter, and articulation), dynamics, and the sonic qualities of timbre and texture. The word derives from Greek(mousike), "(art) of the Muses."
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 subgenres, although the dividing lines and relationships between music genres are often subtle, sometimes open to individual interpretation, and occasionally controversial. Within "the arts," music may be classified as a performing art, a fine art, and auditory art.
To many people in many cultures music is an important part of their way of life. Greek philosophers and ancient Indian philosophers defined music as tones ordered horizontally as melodies and vertically as harmonies. Common sayings such as "the harmony of the spheres" and "it is music to my ears" point to the notion that music is often ordered and pleasant to listen to. However, 20th-century composer John Cage thought that any sound can be music, saying, for example, "There is no noise, only sound." Musicologist Jean-Jacques Nattiez summarizes the relativist, post-modern viewpoint: "The border between music and noise is always culturally defined which implies that, even within a single society, this border does not always pass through the same place; in short, there is rarely a consensus.
Music is a feel of heart which react the invisible thought.It has melodius feel and heart beat.We create a music every moment but some music touches the heart which carry the feel and melodious.Music can do everything which other force cannot do, it can change you by mentally and physically.Even music can effect those thing which are different from human like plant and so on.It changes the environment with feel which it never happens.So music has vast world which no one can get perfect and full of knowledge.
