MKIV, fonts, confusion

[afsmith <adventurecomplete@gmail.com>]

Hi ntg-context.

I'm very confused about accomplishing something that to me seems as
though it should be quite simple, but has proven for weeks of
occasional attempts to be very confusing. I'm finding existing
information from the contextgarden wiki and ntg-context archives to be
very newbie-unfriendly and inconsistent.
I'm compelled to improve the wiki, if only I could comprehend what I
would be documenting.

What I would like to do is use the full range of TeX-Gyre fonts (and
later possibly others) for my existing documents.
It is not clear to me...
Whether or not I am using MKIV, nor how to determine which engine I am running.
If not running MKIV/XeTeX, how to determine which fonts are installed.
What the items from the output of "fc-list" or "mtxrun --script fonts
--list" correspond to.
How to use available fonts, nor where to draw valid parameters from
for use in font commands.
How to determine what font configurations are available for a given font.
Whether I need to write typescripts, nor how to find any existing ones.
Whether I need to concern myself with .map or any other font files.
Whether I need to configure anything, move any files, etcetera.
...As well as anything else I might need to install or use a font

For what it's worth, I have been using the command "texexec" to
process my tex files, am using a context minimals downloaded about two
months ago, and am running Linux.
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