Answer:
The central idea of "Around the family drum" by Howard Raine is the union of the family.
Explanation:
In this story it is told how a custom holds the whole family together. The narrator remembers this custom, which was to play the drum with the family, and brings back good memories.
"The power of the family drum remains tied to my heart."
Here we can see how the family gathered to play the drum and we can see that it was a really beautiful moment according to the author's words.