You can even use a single [tabread4~] to play the array twice throw the multichannel support.
Patch from the [tabread4~] help with a small modification:

Another possible algorithm:

1. Fill a list with the samples, randomize it
2. Drop the samples one by one, use it and fill another list
3. When the first list is empty, switch with the second, randomize it and goto 2.

If you pick a random sample of the second list before the last of the first is consumed then you prevent repetition.

Hi,
You don't need the parent name if you use [iemguts/sendcanvas]. For an example see
https://forum.pdpatchrepo.info/topic/15118/tooltip-display-a-message-about-an-abstraction-in-its-parent

The gui ping when you change the array values by mouse:

FYI it opens with PlugData.

@willblackhurst you generate the combinations but the main subject is the permutations I think.

EDIT: my two cents

perm4.pd

FYI I've played with dynamic display here https://forum.pdpatchrepo.info/topic/15118/tooltip-display-a-message-about-an-abstraction-in-its-parent/1

The Euclidean definition of the functions div and mod https://dl.acm.org/doi/10.1145/128861.128862

it is unfortunate that the definition of these functions appears to be
handled rather casually in the computer science literature and in the design
of programming languages, as one might infer from various poor “defini-
tional engineering” decisions down to wrong or erroneous definitions, as in
the ISO Standard for Pascal [11, 13], Algol 68 [201], and some other languages.

In this paper we clarify the differences between the various definitions, in
particular those based on division by truncation (T-definition) and on division
by flooring (F-definition) as defined by Knuth [141]. We also propose still
another definition, which we call Euclidean because it is based on Euclid’s
theorem (E-definition).

April 1992…

1s. between input bangs

1s. between output bangs

@Moothart @oid's patch with a different arrangement. Patch style is very personal, there is no accounting for taste.