Sorry to disappoint if you were expecting a post on chanting hookers(though that would be a great fit for our recent precepts study!) ops:
Seriously though, this was inspired by a Dharma talk which was given by Edward Brown. At the end of the talk he mentions that the Japanese word for Dharma is Ho. And that there is a practice of chanting Ho. With sustain on the O. So it would look like this if I had to use a written example:
Hooooooooooooooooooooooooooooooooooooooo(I think you get the idea)
Has anyone heard of this practice? I tried to search it online but failed to retrieve any information. I'm really curious to know more about it.