Thank you so much! The piece I was missing was the "placehead=yes". Now
everything works as expected! I couldn't figure out how to increase letter
spacing for the "style" argument using just a \definefont macro, but I was
able to do it with a macro supplied as the "textcommand" argument.

Joey

On Fri, Aug 6, 2021, 1:54 PM Pablo Rodriguez via ntg-context <
ntg-context@ntg.nl> wrote:

> On 8/6/21 7:12 PM, Joey McCollum via ntg-context wrote:
> > Hi,
> >
> > I'd like to define my own class of heading derived from the "part"
> > heading; in the MWE below, it's called "MyPart".
>
> Hi Joey,
>
> these are options for \setuphead[part] (MyPart in your case):
>
> > I'd like this heading to have the following features:
> >
> >   * Its title should appear in the ToC, but its number should never be
> >     printed in the ToC or in the text.
>
> number=no.
>
> >   * It should always start on an odd page.
>
> This is the default for \setuphead[part] (only noticeable in doublesided
> documents).
>
> >   * Its text should be in a larger size than the text of the body, set
> >     in all caps, and set with extra letterspacing.
>
> style is the right option there.
>
> >   * Most importantly, the title of the heading should appear on its own
> >     page without a header or footer. The text of the body should begin
> >     on the next odd page.
>
> placehead=yes is required for \setuphead[part]. And also for MyPart.
>
> header=empty and footer=emtpy. For the page break before the body text,
> you need after=\page.
>
> > I was hoping to accomplish all of this within the \setuphead command,
> > and it seems like this should be possible, but in the following example,
> > I'm not getting the text of the header at all.
>
> See above. I hope it helps,
>
> Pablo
> --
> http://www.ousia.tk
>
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