Re: Centering tremoli under noteheads and suppressing lines through/above/below off-the-staff notes

[Neil Puttock]

On 29 August 2010 15:01, Mike Solomon <address@hidden> wrote:
> Figured it out (sorta)
>
> For the tremolo thing, this seems to work:
>
> #(define (center-trem grob)
>   (let* ((x-extent
>           (ly:grob-property
>             (ly:grob-property
>               (ly:grob-parent grob X)
>               'cause)
>             'X-extent)))
>   (ly:stencil-translate (ly:stem-tremolo::print grob)
>                         (cons (/ (- (cdr x-extent) (car x-extent)) 2)
>                               0))))
>
> \relative c' { a b \once \override Voice . StemTremolo #'stencil =
> #center-trem c:32 }

That's slightly off-centre for your birdsong example (BTW, have you
been in the field brandishing a microphone like Messiaen? :)

Since the stems non-existent, you can set the attachment point on
which the tremolo's anchored:

\once \override NoteHead #'stem-attachment = #'(0 . 0)

Cheers,
Neil