[CM] for I below (num)

[Carl Edwards]

I thought I was following an example but apparently I'm missing something...
Can someone shed a little light?

I have a process in which I was trying to use a for->below as a "ticker":

(defprocess sine-o-time (num)
   (process
        for i below num
        for S = (* 10 (+ .5 (sin i)))
        for ba = (* 10 (+ .5 (sin (* 2 i)))
        for U = (+ 30 (+ S ba))
        output (new midi time (now) keynum U duration .5)
        wait .5))

When I try to use it, like this:
(events (sine-o-time 512) "c:\\tmp\\sin.mid")

I get:
*** - EVAL: the function I is undefined

I'll hit the books, but any help would be appreciated.

TIA.

Carl Edwards