ok, it is clear that my original post was poorly written. i'm taking an axe to the post.

I intended to convey that i dont think there are any words to remember. If it had words nobody would know the language--do we really expect someone to find magic words that do the trick?

The key is the participants.

There is a common denominator between the song's participants. The human, Ogier and Nym involved were beings whose nature focused on creation/life.

This common quality is important—it is relevant to what they are DOING with the song--they are making things GROW.

The importance of this quality (and the importance of human participation) is evidenced because the Song was lost when the Aiel stopped following the Way.

The fact that the Aiel majority forgot that they originally followed the way of the leaf lends weight to the fact that they also forgot their involvement in, and anything about, the Song.

Adding to my post:
We see the aiel, ogier and Nym seed singing.

Nym we know as constructs for growth/life.

Look at the Ogier -- even today they continue to have talents with singing that affects life. they can sing a walking stick from a living tree.

Now, look at the humans--they also participated in the seed singing. Logic dictates that their participation contributed and given that they were singing--logic dictates that their singing was special.

These humans followed the way of the leaf. That's basically the big difference between them and the rest of humanity. But it's an enormous difference. This is what stands out as the cause of their ability to sing.

So, their singing causes growth/life.
They live a lifestyle that focuses only on life.

This common denominator cant be coincidence.