Isochronic

I came across the term "isochronic recurrence" and since I've never gotten deep into linguistics, I had no idea what that meant. Then I found a pretty decent definition of a related word, isochrony: "A sequence of events is called isochronous if the time separating each pair of successive events is strictly equal." And, interestingly though not surprisingly, "The absence of isochrony is called anisochrony."

Now I'm trying to understand what the heck mora means. I read about it, but can't figure out what they're saying. But it sounds interesting, like lots of other language stuff out there.