I got a question for you: In music, modulation is most commonly the act or process of changing from one key (tonic, or tonal center) to another. This may or may not be accompanied by a change in key signature. Modulations articulate or create the structure or form of many pieces, as well as add interest. Treatment of a chord as the tonic for less than a phrase is considered tonicization.\n\nBased on this passage, shift from one key to another within a composition?
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To answer this question, we should know that: In music, modulation is most commonly the act or process of changing from one key (tonic, or tonal center) to another.
Therefore, the answer is modulation.
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