Classical Variation refers to the traditional approach in the study of variations in a musical theme. It typically involves taking a simple melody and altering it through techniques such as changing the rhythm, harmony, or instrumentation. This method allows composers to explore different emotional and aesthetic dimensions of the original theme. In the context of Western classical music, composers like Johann Sebastian Bach and Wolfgang Amadeus Mozart are known for their use of classical variation. Their works often showcase how a single idea can be transformed into multiple interpretations, highlighting creativity and the depth of musical expression.