xa 0 600
ya 0 500
x Time Between Stimulations (msecs)
y Refractory Period (msecs)
p 0,1,2,3l
# Note: the previous line ends with a lower-case L, not a numeral 1!o
t ch 1.2
l 400 200 CC fires every beat
L .1 .9 CC . . .
hl .45 .81 CC 2
fires every
other beat
hl .25 .92 - 4
  fires
 every
third
beat