It was a good day when OHM was released, probably still have my copy, I do still have the 128k mp3 rip of it I did 20 some years ago. Rainforest can be watched on the amazing ubuweb. Not much for dance myself but watching this was interesting, took effort at first and I am not sure what I think about it but it certainly had an effect.

https://ubuweb.com/dance/cunningham_rainforest.html