There used to be a few threads on this, maybe they were removed with the clean up?
I had a great exp with HB. I railroaded DP into paying for the course (wasn't working at the time) saying that it was my investment in the birth I wanted.
I had a fabulous birth experience, labouring entirely at home, in peace and confidence in my body.
I literally breathed DS out into the bath at the BC, the midwives were very supportive of my HB birth plan and ended up not having to do a thing except run the bath and provide the jug for DP to pour water over me.
I hummed (albeit loudly!) during the last couple of hours of labour, to get me through. I felt no need to vocalise in any other way, and that's just a personal thing on my part. I wanted a very, very peaceful entry for my baby and I got it. It was the zen birth I wanted