Internal Controls can be classified in two different ways, one related to safeguarding equity and accounting records, another referring to planning and operational efficiency. These controls are given, respectively, the names of:
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That is because time symbolizes chaos. It is similar to what is seen in the poem Ozymandias. Time is not something that can be controlled or something that we can beat. It's passage is inevitable and we can only let it take over.
The vocal writing tends to be more syllabic and not nearly so virtuosic. There is also very little repetition of text; singers typically sing their words only once. The melodies also tend to be more rhythmically fluid, avoiding any strong sense of periodic phrase structure.