randomwmemory.pd

There are many ways to do this ... @Dizzy-Dizzy Please read the patches and try to understand them.

https://forum.pdpatchrepo.info/topic/14635/how-to-construct-a-background-noise-filter-in-pd

If non-Vanilla externals are ok: zexy/urn
Otherwise for example:
random-wo-repitition.pd
(not cheap!)
With that for example:
https://forum.pdpatchrepo.info/topic/14522/is-it-possible-to-group-different-soundfiles-in-only-one-message/2

[list-find] from list-abs library

What are you referring to by normalize action?
normalize message to an array?
Pd is deterministic! See 2.control.examples/08.depthfirst.pd

@oid said:

this won't work if you have more than one instance of the middle abstraction

I knew I was missing sth.

Can we do

[savestate]
/
[route menusave]
|
[menusave(
|
[sendcanvas]

using the right outlet bang of [savestate] in the middlepatch, then [savestate] in the child as intended.

I agree with @alexandros init state should work, but in an abstraction it doesn't.

if this is the case maybe you could do a work around by sending dirty message to the middle patch, similar to how I did there:
https://forum.pdpatchrepo.info/topic/15732/how-to-save-restore-multiple-0-array-abstractions-in-a-patch/4 maybe with metro instead of ping, this way you get asked to save before closing.

[namecanvas $0-parent]

[loadbang]
|
[1(
|
[metro 20000|
|
[dirty 1 (
|
[s $0- parent]

@witteruis ctrl+click on the red error line to find the error.
Read here below Fig. 2.1.7 https://msp.ucsd.edu/Pd_documentation/resources/chapter2.htm