Answer:
1. Affective experience (music)
2. Performance (players)
3. Community (audience)
4. Memory/History (time and space)
(I believe)
Explanation:
A,B, and C apply to most normal Egyptian pyramids.
Double variations appear during the Second movement of the Beethoven's Fifth Symphony.
54. B.
55. A
I'm pretty sure these are the answers. I hope that helped with those two
It is equivalent to 4 eighth notes