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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