Re: newbie question about "unaccent" symbol

[Jeremy]

JS> I'd like to mark a note as unaccented using the symbol whose use I
JS> associate with Schoenberg, the bottom half of a flattened circle
JS> (there must be a name for this symbol, but I don't know what it is).
JS> How can this be done?

Have you looked at the reference manual section on articulations?
http://lilypond.org/stable/Documentation/user/out-www/lilypond/Articulations.html#Articulations

If you cannot find the symbol you are looking for there, than you
might have to add it yourself to the Feta font, or try to "hack" it,
using techniques described here:
http://lilypond.org/stable/Documentation/user/out-www/lilypond/Articulations.html#Articulations

--
Best Regards,
Jeremy