Yes, i have heard from coldplay, I would not say super popular rn but they are definitely well known
Adding auxiliary bounce lighting or reflectors is used in weddings
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A compound meter is when beats are divided into three notes so I think the best option would be C. 6/8
Hope this helps and I hope you have a great day!
Answer:
the shapes in the background
Explanation:
the positive space in a work of art is the main subject/ what we focus on, therefore the negative space would be everything around it.