Hello, Nicolas. On Thu, Jul 17, 2008 at 8:12 AM, Nicolas Sceaux <[EMAIL PROTECTED]> wrote: > > Do you mean a FingeringEvent music expression, or a Fingering grob? > Once you have grobs, it's too late for modifying music expressions. > You can navigate down music expressions, but not up. But see below.
I think I would like the music expression. I didn't know that once I had a grob it was too late. > I'm not exactly sure what you're trying to do, but here is my guess. > > Based on an input like: a''2-2 > you want to produce something like: [fill in the blank] I would like to start with: a''2-2 And produce: a''2 with customized NoteHeads and Stems based on the "-2" fingering. I want to produce a note with a custom notehead and suppress the fingering numbers. The notation I'm trying to code indicates fingerings with notehead shapes, not fingering numbers or letters. But, I would like users to still be able to indicate fingerings with the normal lilypond notation like "a-2". > The process is the following: > > 1. \displayMusic a''2-2 > as you have done, to be able to recognize how to get the interesting > elements > > 2. \displayMusic [fill in the blank] > to see how to programmatically build the result > > 3. write a basic music function that transforms the input to the desired > result. > > If what you're working on is complex, at first implement elementary > transformations. Then, progresseivey merge them in single music function > that does what you aim at. I am using this approach with good results. I know the music expression I want to create. I just need to be able to catch music expressions so that I can get the fingering number that the user entered. Then I can create the correct note based on the fingering. With code like this: \override Fingering #'stencil = #custom-fingerings %<-- a function I can intercept any music expression that has a fingering. But, I receive the Fingering grob in the function. How do I intercept all music expressions before they are grobs so that I can make them myself? If this is documented then I'm just missing it and would love to be enlightened. > > nicolas > > Thanks, Nicolas, this is very helpful and educational. -Eric _______________________________________________ lilypond-user mailing list [email protected] http://lists.gnu.org/mailman/listinfo/lilypond-user
