The MOST important part of any story (it’s probably not what you think!) (5/5 in the story series)

I put the CD into the player and felt my stomach fizz with excitement. After months of stillness, finally, I was going to bring the room to life! I pressed play and looked up, expecting to see all the seniors bopping along. Instead: nothing.
No movement. One old lady eventually looked at me and furrowed her brow.
“This is The Beatles?” she asked.
“Yes!” I replied.
“Huh.”
She went back to her newspaper.
I was volunteering at the day centre for seniors with dementia, and I wanted to move them with music. But they had other ideas…
That’s one way to begin this story. Here’s another:
This is a story about the power of music, and surprising yourself – about the time I made a CD for the seniors that I work with, thought they didn’t like it, and then got shocked by an old lady, who danced the jitterbug with me like she was 16 again.
It all started when I first put the CD on. After months of stillness, finally, I was going to bring the room to life…
I ask people (during client calls or storytelling workshops), “Which is the most important part of any story?”
Here’s what they usually guess:
The narrative
The detail
The ending
The climax
In fact, the answer is…