How could quant or outset be defined for Pdefs in canons?

[diegovdc]

If doing something like this:

(
var melody = ~presets.pyramidalMelody;
var canon = ~convCanon.(melody).canon
  .collect(~instrument.([\pianola]))

Pdef(\canon, Ppar(canon, inf))
)

Pdef(\a).play

It could be nice to have a standard recommendation for what to do when you recompile the code with some change but do not want the new canon to start playing at the beginning.

How should this look like?