What is the Meaning & Definition of classical music

As well as any historical period, the Renaissance, Baroque, among others, that we identify them through specific dates in the time, musical classicism, also includes a historic moment, which will begin in 1750 with the death of Sebastian Bach, faithful exponent of Baroque music and that obviously will serve as inspiration to many of the "classics" and ends approximately in 1820 with the physical disappearance of Beethoven.
What characterizes this musical period is the evolution towards a music quite balanced between harmony and melody.
But of course, it would be impossible to talk about this moment in the history of the music and even understand it, if not lies in the political and social context in which it is developed. They are times of enlightened despotism, then, begins to have a significant interest from Kings and Ministers to introduce reforms improvers in the field of culture and the arts. It begins to protect musicians, there is a greater influx of public concerts and this causes to increase the demand for musicians. And the music of course will not be exempt from the enlightened humanitarianism that prevailed at the time and will be mostly affected by this.
The effect of this is a simple melody, product of the rational work that focuses on the search for balance. The instrument will be the protagonist par excellence and the religious will run from the scene to give place to the secular sentiment that will be which will prevail in the period.
The best-known forms of classical music are the sonata and opera and more faithful representatives of the genus will be Franz Joseph Haydn, Wolfgang Amadeus Mozart and Ludwig van Beethoven, being this last who will close the period known as classicism and a very important legacy, will leave that it will kick off the romantic period of music, which will be quite inspiring for artists that will succeed it in the 19th century.
Although the symphonies of Beethoven is what most popularly known of, its contribution proved to be much more decisive in piano and chamber music.