Answer :
Prerecorded orchestra music is useful for dancers that's why the orchestra typically prerecord most of its performance for a tv music special.
What is the difference between a symphony and an orchestra?
A symphony is a large-scale musical work comprising three or four movements. An orchestra is a collection of musicians who play a variety of instruments, most notably the violin family. An orchestra is most recognized for its collection of string instruments like the violin and cello. Many orchestras today, however, contain a variety of other instrument types from the brass, woodwind, and percussion categories, making the group's music more varied and dynamic. By utilizing music as a vehicle to teach and bring about the feeling of harmony, an orchestra may assist a community cope with the stress and pressure of change.
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