Sorry for the noise. I had taken a similar approach following a snippet in the documentation, that uses \voiceOne and \voiceTwo. Simply removing those two commands works perfectly.
On mar. 26 2021, at 12:02 pm, Martín Rincón Botero <martinrinconbot...@gmail.com> wrote: > I was trying several things with gap-count to see if it affected it in any > way (it doesn't) and forgot to remove the \revert command. I paste it again > without it. > > > \version "2.20.0" > > > \context PianoStaff = "pianostaff" << > \context Staff = "RHStaff" { > \repeat tremolo 8 { > \voiceOne > <c''' b'''>32 > \ottava 0 > { > \change Staff = LHStaff > \voiceTwo > <a, gis>32 > } > } > } > \context Staff = "LHStaff" { > \clef bass > s2 > } > >> > > > On mar. 26 2021, at 11:59 am, Martín Rincón Botero > <martinrinconbot...@gmail.com> wrote: > > Hello all, > > > > it seems I stumbled with this bug > > https://gitlab.com/lilypond/lilypond/-/issues/2383. The following code > > produces error messages (sorry, in Spanish) and bad output: > > \version "2.20.0" > > > > \context PianoStaff = "pianostaff" << > > \context Staff = "RHStaff" { > > \repeat tremolo 8 { > > \voiceOne > > <c''' b'''>32 > > \ottava 0 > > { > > \change Staff = LHStaff > > \voiceTwo > > <a, gis>32 > > } > > \revert Beam.gap-count > > } > > } > > \context Staff = "LHStaff" { > > \clef bass > > s2 > > } > > >> > > > > Error messages/warnings: > > /tmp/frescobaldi-334szimt/tmp1_veurae/document.ly:6:5 (0): advertencia: no > > se ha encontrado ninguna configuración inicial viable; puede que no se > > encuentre una buena inclinación de las barras > > \repeat tremolo 8 { > > error de programación: No viable beam quanting found. Using unquanted y > > value. > > continuamos; cruce los dedos > > /tmp/frescobaldi-334szimt/tmp1_veurae/document.ly:8:18 (1): advertencia: > > tamaño de plica extraño, compruebe que no haya barras estrechas > > < > > c''' b'''>32 > > /tmp/frescobaldi-334szimt/tmp1_veurae/document.ly:13:22: advertencia: > > tamaño de plica extraño, compruebe que no haya barras estrechas > > < > > a, gis>32 > > advertencia: No se dibuja el rectángulo con dimensiones negativas, 0.13 por > > -0.24. > > advertencia: No se dibuja el rectángulo con dimensiones negativas, 0.13 por > > -0.24. > > > > > > Output: > > Is there anything I can do to make Lilypond print if not the beam at least > > the missing stems so that you can read a half note instead of a whole note? > > Regards, > > Martín. >