Re: trillspan

[Valentin Petzel]

Hello Erik,

<> is an empty chord, it is literally a (make-music 'EventChord 'elements ()).

Cheers,
Valentin

Am Mittwoch, 16. März 2022, 20:29:36 CET schrieb E Appeldoorn:
> THank you
> 
> I knew the <> as a 'stay in this place' type of anchor. I do not know
> the proper word for it. But yes, your solution did work. I needed a bit
> of tweaking because the TrillSpan jumped to the right a bit. But got it
> fixed and it looks as needed. Thanks again.
> 
> vriendelijke groet, Erik Appeldoorn
> 
> ------ Origineel bericht ------
> Van: "Valentin Petzel" <valentin@petzel.at>
> Aan: "Lilypond" <lilypond-user@gnu.org>
> CC: "E Appeldoorn" <ursus.kirk@gmail.com>
> Verzonden: 16-3-2022 19:58:22
> Onderwerp: Re: trillspan
> 
> >Hello Erik,
> >
> >\startTrillSpan is a post event, so you need to specify it after the note
> >you want the trill to start on. You can use empty chords <> to circumvent
> >this and kind of specify the span before the first note.
> >
> >You still won’t get any change, as trill spans are by default outside-staff
> >grobs, so Lilypond will only position them over or under a staff, but never
> >within (unless we try hard by using extra-offset or hacks).
> >
> >Thus if you want to have the spanner insider of the staff you need to tell
> >Lilypond not to handle it as outside staff object, which can be done by
> >setting the outside-staff-priority to '() or #f.
> >
> >Finally the Y-offset will be measured from the center of the staff. This
> >means it might useful to use the offset command instead of directly going
> >by Y-offset. Or maybe not.
> >
> >See here your amended example:
> >
> >{
> >
> >   \once \override TrillSpanner.outside-staff-priority = #'()
> >   \once \offset Y-offset #-2 TrillSpanner <>\startTrillSpan a4*5
> >
> >\stopTrillSpan }
> >
> >Cheers,
> >Valentin
> >
> >Am Mittwoch, 16. März 2022, 16:40:40 CET schrieb E Appeldoorn:
> >>  I wanted to move a TrillSpann downwards to within the bar on the middle
> >>  barline.
> >>  I finaly came up with
> >>  \once \override TrillSpanner.Y-offset = #-2 \startTrillSpan a4*5
> >>  \stopTrillSpan
> >>  But got an error 'unbound TrillSpannEvent' and nothing has changed.
> >>  So how do I move that TrillSpanner southwards?
> >>  (version 22.2.1)
> >>  
> >>  Thanks.
> >>  vriendelijke groet, Erik Appeldoorn

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