Creatively image a question and justification for this answer: a specific technique of singing by which a singer mixes in the proper proportions , their lower and upper resonances ; resulting a sound that resembles yelling but is actually a controlled , sustained phonation

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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The question is: Context: Belting (or vocal belting) is a specific technique of singing by which a singer mixes in the proper proportions, their lower and upper resonances; resulting a sound that resembles yelling but is actually a controlled, sustained phonation.' Belting' is sometimes described as' high chest voice' but this is technically incorrect and potentially damaging for the voice. It is often described as a vocal register, although this is also technically incorrect; it is rather a descriptive for the use of a register. Singers can use belting to convey heightened emotional states.

Question: what does it mean to belt a song?
Step-by-step reasoning process: To answer the question, consider the following: Belting (or vocal belting) is a specific technique of singing by which a singer mixes in the proper proportions, their lower and upper resonances; resulting a sound that resembles yelling but is actually a controlled, sustained phonation.
