I'm not shure if I understood that. You mean that if I set the "nuber of subdivisions per beat" as 10 I can't set the number of beats to, say 8,255? As far as user's responsibility goes, it doesn't make sense to input negative numbers, yet it is possible.
I think we're saying the same thing, if you're using the comma the way americans use the dot for indicating decimal; did 8,255 mean "8 + 255/1000"?
Briefly -- it means that if I set the "subdivisions" to 4 (i.e. the "rhythms" will be quantized to "sixteenth notes"), I will not be able to generate something that lasts a total of 25.2 beats, since 25.2 is quantized to 5 subdivisions per beat ("sixteenth-note quintuplets).
Matt