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When some features of a musical idea are changed, but others are retained, the technique is referred to as a variation
This is further explained below.
<h3>What is Musical
variation?</h3>
Generally, In the context of music, "variation" refers to a formal approach in which the same material is repeated but in a different form each time.
Alterations might be made to the melody, rhythm, harmony, counterpoint, timbre, or orchestration, or any combination of these elements could take place.
In conclusion, The term "variation" refers to a musical method that takes place when some aspects of a musical theme are altered while others remain unchanged.
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Yes, it is true that one of the main ideas of economics is that every choice made involves a cost, since we live in a world of limited resources.
This is true because every civilization that was big and started out very early in the history of mankind needed to have a water source where they could use irrigation or just the water from a river in order to be able to grow crops and supply the demand for food in their area.
In 1867 , Upon Confederation Canada was adopted as the legal name for the new country , and the World Dominion was formally reflected in 1982 with the passage of the Canada Act which was made only for Canada.
I really hope that this helps you lot , have a nice day.