remaining Unset question

[emily atkins]

In hopes of finding an answer to an 'unset question' 
I went to a previous discussion set...
After finding/examining the file 
given as an answer  (I found it!) 
and re-reading all the posts/follow-ups I am still 
completely unable to find a clear explanation of how to 
unset EasyHeads!  It seems such a simple thing 
to do and much has been said about how 
to find the source of the answer... 
 However, having put effort into it and 
having reached a dead end I am now searching 
for someone willing to simply share a command that has
 worked in this case.  Many of my students are too good at 
reading to have all the notes in easyNoteHead form,
 but not good enough to leave easy heads out 
completely.

We love having lilypond, and all the student's parents 
are urged to donate at least once (and then reminded 
again at Christmas) in honor of  the contribution lily has 
made to their kid's understanding of music.  

Thanks,
e