RE: Purring with a diaphram...
I've tried quite a few things...and realized that there are three main ways to purr.
1) Vibrate your vocal cords, while pushing air through the diaphram.
2) Vibrate the diaphram with your tounge
3) Vibrate your lips (motor boat).
It is amazing what practice and time can do. When Istarted this post, I couldn't purr to save my life. Now I can purr as easy as with a diaphram as I can with my slate.
What I did: I messed around with the three different main methods. When messing around, there was one I just couldn't do (vibrate with my tounge), but could create a awefull/distressed turkey noise/half a$$purr when vibrating myvocal cords.....so I went with it. I put a diaphram in my truck and practiced the purrwhenever I drove.To work, to lunch, back to lunch, to home, etc. Everytime I drove, I would get more comfortable with it and could see my improvement. I probably have about 2 hrs of practice/driving time, and can now purr. (of course I will fine tune iteven more between now and opening day) Thanks everyone for your help.