Re: Special Markup Within Staff?

[Kieren MacMillan]

Hi Eric,

> I have tried to implement them with a new Voice
> with custom noteheads and no stems.  [...]
> Was I on the right track treating them as notes in a voice?

If they're always played at the same time -- i.e., as chords -- then  
why not just write them as chords, and \tweak the notehead shape of  
the appropriate element?

Hope this helps!
Kieren.