Re: adding stems to clusters

[Jaime E Oliver]

Dear David, all, 

Thanks for your responses.

Ideally I want to make a graphic notation for overpressure bowing similar to the xenakis excerpt attached.

I was thinking of adding stems to a cluster-band as a hopefully day solution, but I see it is not so easy. I did try the new voice hack, but didn't feel very elegant (not that I could do much better than that).

Example 15) from Piaras does look great. I'll write him to enquire. 

All the best,

J

On Dec 29, 2014, at 8:11 PM, David Nalesnik <address@hidden> wrote:

On Mon, Dec 29, 2014 at 6:43 PM, David Nalesnik <address@hidden> wrote:

Hi again,

On Mon, Dec 29, 2014 at 6:06 PM, David Nalesnik <address@hidden> wrote:

Hi Jaime,

I'll look into lengthening it to reach the stem.

Not at all easy, I'm afraid.  Are you looking for the cluster-band sort of notation, or would individual clusters per stem suffice (like Cowell, for example)?  Possibly the latter would be easier to implement.

Here's a simple test.  (A rounded box might be preferable.)

 \version "2.19.15"

{

  \hide NoteHead

  \override NoteColumn.stencil =

  #(lambda (grob)

     (let* ((noteheads (ly:grob-object grob 'note-heads))

            (ext-X (ly:relative-group-extent noteheads grob X))

            (ext-Y (ly:relative-group-extent noteheads grob Y)))

     (make-filled-box-stencil ext-X ext-Y)))

  <c'' e''>4. q8~ 4 <c' a'>16 q q q~ q4

}

[See attached image.]

Hope this is helpful--

David

<clusters.png>