Because they use it for us people to know what is happening.
Answer:
A group of solo instruments called the concertino
Explanation:
It is generally a multi-movement work for a smaller group of solo instruments, called the concertino, contrasted with a larger group, called the ripieno. For example, In J. S. Bach's Fifth Brandenburg Concerto, the concertino is a flute, a violin, and a harpsichord.
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The Antioch Mosaics illustrate how the classical art of Greece and Rome evolved into the art of the early Christian era and tell the story of how people lived in this ancient city prior to its destruction by catastrophic earthquakes in 526 and 528 A.D. They are notable for their: Grand scale.
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