The Baroque was the musical era from about 1600 to 1750. It is marked by ornateness, and heavy use of counterpoint. It was brought to it's culmination - and end - by J. S. Bach, the greatest of the Baroque composers, and generally credited as one of the greatest composers of all time. The other best-known composer of the Baroque was Handel. This was followed by a brief period called the Rococco, which had elements of both the Baroque and the emerging Classical period. The classical period was marked by much less use of counterpoint, and much more use of homophonic music, that is a melody line supported my harmonies. Haydn and Mozart's music defines the Classical.
which key element contained in the Baroque music that classical music left out
In the regular "music textbook" usage of the terms, yes - Baroque preceded classical.
The style of music Antonio Vivaldi played was Baroque music which he turned into a classical style.
The baroque era was full of cantatas when the toccatas or no voice movements were predominant in the classical era.
Baroque
The term classical music refers to a broad period in Western music that includes the Baroque and Romantic eras.
The Classical Period. that was in the 1800's
Mainly Hayden
1600-1750
It is baroque classical music
Baroque music is a style of European classical music extending from 1600 to 1750.
I think what your thinking of is a form of classical music called Baroque