I'm not sure that the pingpong is really that easy, at least just tapping doesn't makes it easy to figure out the timing somehow. I can only say I'm not always bad at that kind of element.
Honestly the best I was with trying to spam the moment.
Still good for you, sounds like this many took a liking to it.
edit: Must be a good day, got an audio feedback after suddenly hitting the timing and from there it was much easier, maybe i ignoed the possibility before.