My apologies for my confusion, and my thanks!  That did it!

On Fri, Sep 11, 2020 at 10:15 AM Wolfgang Schuster <wolfgang.schuster.lists@gmail.com> wrote:
T. Kurt Bond schrieb am 11.09.2020 um 16:12:
> I tried using
> "\definefontfallback[mainface][rm][Symbola][range=playingcards,force=yes]"
> and the PLAYING CARD ACE OF SPADES still didn't show up in the output.

It's the wrong command, you need \definefallbackfamily when you use
\definefontfontfamily.

\definefallbackfamily[mainface][rm][Symbola][range=playingcards,force=yes]

Wolfgang



--
T. Kurt Bond, tkurtbond@gmail.com, https://tkurtbond.github.io