I've been collaborating with an Italian design student that created
numerous music fonts for a school project, but they aren't actually used in
any notation program (yet), but he has agreed to work with me and take the
steps necessary to make them usable with LilyPond. Each of his fonts are
quite stylized and are designed to represent a different genre of music.
The one I'm doing first is meant to imitate the feeling of the famous Didot
(or Bodoni) text font, with lots of thick and thin elements. Anyone seen
this before? It is his designer that they be made available for free,
licensed under the OFL. He's pretty excited to see his work get out there.
Before I can do this, however, there's one issue I haven't been able to
solve. The noteheads (quarter and half) are designed such that it really
only has ONE stem attachment point (marked in orange in the attached
image).
For stems going up (right-side of image), it is the top-right point. For
stems going down (left-side of image), the glyph must be rotated 180
degrees so the same attachment point is now at the bottom-left where the
stem is located. The rotation part I've been able to figure out, but it
isn't automatic yet. My question is this: how do I determine when a
particular notehead's _true_ stem attachment at that moment is going to be
at the bottom-left so I can rotate the notehead glyph? I don't care what
the value is, though it may be needed to determine the event, I just want
to know _when_ it happens. I hope that makes sense.
Here's my simple code so far:
#(define alt-notehead
(lambda (grob)
(let* ((stil (ly:note-head::print grob))
(newstil (ly:stencil-rotate stil 180 0 0)))
newstil)))
Then, when I want to use it, I do:
(\once) \override NoteHead.stencil = #alt-notehead
When I get the 'stem-attachment property of the notehead, it always gives
me the top-right value, regardless of where the stem is actually attached.
I'm hoping this will work for chords, too, though I haven't experimented
enough to know for sure. Any help is always appreciated!
Regards,
Abraham
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