scriptvm/examples/polyphonic.txt

{ Polyhonic variables are, in contrast to all other variable types, not global
  variables, but instead they exist separately in each event. Which circumvents
  the problem that (global) variables may be altered undesiredly if event
  handlers are called in "parallel". Downside: polyphonic variables need to be
  allocated as many times as events exist in the system. Thus: one single
  polyphonic variable takes a lot of memory! Due to this reason, only integer
  variables are allowed to be declared as polyphonics ATM. }

on init
  declare polyphonic $p
end on 

on note
  message($p)
  $p := $p + 1
  message($p)
  $p := $p + 1
  message($p)
end on
1	{ Polyhonic variables are, in contrast to all other variable types, not global
2	variables, but instead they exist separately in each event. Which circumvents
3	the problem that (global) variables may be altered undesiredly if event
4	handlers are called in "parallel". Downside: polyphonic variables need to be
5	allocated as many times as events exist in the system. Thus: one single
6	polyphonic variable takes a lot of memory! Due to this reason, only integer
7	variables are allowed to be declared as polyphonics ATM. }
8
9	on init
10	declare polyphonic $p
11	end on
12
13	on note
14	message($p)
15	$p := $p + 1
16	message($p)
17	$p := $p + 1
18	message($p)
19	end on