Hi Larry,
your pd-scheme external is marvellous! Anybody interested in the possibility of scripting in the framework of pd should check it out. As I suggested in another private email I could imagine it would be nice to add some "plugs" to and from pd via fifos in order to access scheme directly from e.g. emacs in order to set values and check its behaviour interactively (for debugging purposes and such), but the reload function and the "()?" operator (IMO a very clever idea) make similar things somewhat possible.
I think I found some minor bugs in scm.c and pdinit.scm and will send the patches to you in a seperate mail.
Yours, Orm