So, I got vbap working in PureData and I found it very useful. I'm able to
control the position realtime which is what I was looking for. I emailed the
author, Ville Pulkki, and asked him about the possibility of having a k-rate
controllable version for Csound. He replied and confessed that he has been
away of Csound for very long time and he doesn't plan to get into it again
any time soon. He said he remembered John ffitch doing some additions to
these opcodes some time ago, so he might know how they are built.

Anyways, I'm just throwing this out there to see if I'm luck and we get a
realtime controllable vbap, I prefer working with Csound than with the
box-and-wire interface of pd!

Cheers,

Hector