The classical music is broad term which is usually referred to the music produced in, or rooted in the traditions of Western ecclesiastic and concerts music, covering a broad period roughly the 9th century to present times. The central standards of this tradition became codified between 1550 and 1900, which is known like common practice period. It is still played by several of musicians of today. Once used as synonym for the Western art music, the term encompasses a range of musical styles and approaches, ranging from compositional techniques (such as fugue) to entertaining operettas.
The European classical music is mainly distinguished from many of other non-European and popular musical forms by its system of staff notation, in use since about the 16th century. The Western staff notation is used by composers to prescribe to the performer the pitch, speed, meter, individual rhythms and exact execution of a piece of music. This leaves less room for practices, such as improvisation and ad libitum ornamentation that are regularly heard in non-European art musics, and popular music. The public taste for and appreciation of the formal music of this type weakened towards the end of 1900 in the United States and the United Kingdom in particular. Certainly this period saw the classical music falling well behind immense commercial success from the popular music, according to the opinion of some, although the number of sold CDs is not indicative popularity of the traditional term of music. The term “classical music” did not appear until the early 19th century, in an attempt to “canonize” the period of Johann Sebastian Bach to Beethoven as a golden age. The earliest reference to “classical music” recorded by the Oxford English Dictionary is from about 1836.