On 5/29/11 5:42 AM, "Hilary Snaden" <[email protected]> wrote:
> Phil Holmes wrote: >> "Hilary Snaden" <[email protected]> wrote in message >> news:[email protected]... >>> Manual beamings of cross-staff note groups are mangled, but >>> inconsistently. The beaming in this extract works for the first 6 bars, >>> then fails on beats 1 and 3 on the following bars. (Beamings on beats 2 >>> and 4 are as they were.) Versions 2.12.2, 2.13.61 and 2.13.62 behave in >>> the same way. >> >> Could you prepare a tiny example that demonstrates this, please? (See >> http://lilypond.org/website/bug-reports.html) > > The original example showed that the beam-mangling didn't start (in the > real-world case) for several bars and that the mangling occurred only on > the 1st and 3rd beats of the original 4/4. (Bugs within bugs?) The beam-mangling is unrelated to the bar number (with the possible exception of bar 1). It also can easily be made to occur on beats 2 and 4. See the code below for an example. It most likely is related to a particular set of pitches compared with the neighboring pitches; Mike Solomon would have a better idea of what is broken here. Hilary, if you can get the example even smaller, it would be helpful. HTH, Carl \version "2.13.62" csu = \change Staff = "upper" csl = \change Staff = "lower" sd = \stemDown sn = \stemNeutral su = \stemUp manualBeam = #(define-music-function (parser location beg-end) (pair?) #{ \once \override Beam #'positions = #$beg-end #}) upper = \relative a { \clef treble \key a \major \time 4/4 \su r16 \csl \manualBeam #'(1 . 1.5) ais^( g \csu e' % 7 g16 \csl \manualBeam #'(1 . 1.5) ais,^( g \csu e' % 7 \csl \manualBeam #'(1.5 . 2) ais, \csu g' e g) % 7 r \csl \manualBeam #'(1 . 1.5) ais,^( g \csu e' \csl \manualBeam #'(1.5 . 2) ais, \csu g' e g) % 7 r \csl \manualBeam #'(1 . 1.5) b,^( gis! \csu e' % 8 \csl \manualBeam #'(1.5 . 2) b \csu gis' e gis) % 8 r \csl \manualBeam #'(1 . 1.5) b,^( a \csu dis % 8 } lower = \relative a, { \clef bass \key a \major \time 4/4 \sd a4 r a r | a r a r | } \score { \new PianoStaff { << \new Staff = "upper" { \upper } \new Staff = "lower" { \lower } >> } } _______________________________________________ bug-lilypond mailing list [email protected] https://lists.gnu.org/mailman/listinfo/bug-lilypond
