Music is as old as man is. If you NEED a date, the oldest form of centralized Western music started in about 1100 AD following Pope Gregory's contribution and collection of the now known Gregorian Chant.
About 1900, the first year of the 20th century.
The Victorian era (1830 to 1880) saw the enthroning of music, especially piano music, as an essential stabilizing element of society and, particularly, the family.
9500 BC.
Swing era of the 1930s and the 1940s
Mariachi music begin in the 19th Century.
how did the music begin
Music of the classical era was distinguished by its simple rhythms, melodies and harmonies, which were essentially tonic-dominant. Classical era music lacked the passion and elaborate instrumentation of the Romantic era, or the complex counterpoint which typified Baroque music.
the mesoproterozoic was an era itself not a period.
Classical era
in the era of awesomeness when dinosaurs were alive.
The Classical era of music took place from 1730 to 1820. What made that era unique was the type of music produced and the instruments involved, as well as the musicians who created the music.
The Classical era