Og would clap a couple of boulders together. I know that 'boulder' sounds big but you had to be there. Og could knock the boulders together and if you complained he'd knock a couple of heads together and maybe get more resonance out of 'em. We didn't have the word 'resonance' at the time, but we recognized how the hard edge of the chants came back to us from the gods in the cliff walls or at the end of the longer caverns.
But when the women and girls joined with a chorus, and the entire clan sang it was - indescribable.

It's all because we were being sung to by the tree frogs, and we were singing back to them.

We didn't have a god at the time. We had trees and some hanging fruits, and the fungi that made the light come inside our eyes.

And when they all got going, there was no stopping until Og put the stones down.

Nothing like it since, absolutely nothing.

As for the first dances ever, they were absolute rubbish. A good waltz is about as good as it's gotten.