Scripting help to create a multi-value 'involved people' tag?

[outsidecontext]

See also the related discussion below for some more info / background how multi value tags are handled and why $set(artists, %artists%) works in this case:

Need help for a small Script

Hi, I‘m new to Picard and need help by a (hopfully) smal Script. I want to name the ARTISTS tag (and some other Multi-valued tags) as a String and not proper multi-valued tags, e.g. Nicki Minaj; Drake; R.E.M and not Nicki Minaj Drake R. E. M. Is there a Solution?