Re: Grace notes causing inverted stems in \tabFullNotation

[David Kastrup]

"Phil Burfitt" <address@hidden> writes:

> Tiny example...
>
>
> \version "2.18.2"
>
> treble = \relative c' {
>  \voiceOne
>  \grace g8 g4 g g
> }
>
> bass = \relative c {
>  \voiceTwo
>  \grace s8 c4 c c
> }
>  \score {
>  \new TabStaff {   \key c \major
>    \time 3/4
>    \tabFullNotation
>    <<
>      \new TabVoice { \treble }
>      \new TabVoice { \bass }
>    >>
>  }
> }
>
>
>
> Any solutions?

That's a rather long-standing problem, namely issue 630
<URL:https://code.google.com/p/lilypond/issues/detail?id=630> reported
more than 7 years ago but likely present for more than 10 years (See
<URL:http://lilypond.org/doc/v2.6/input/regression/collated-files.html#property-grace-polyphony.ly>
where the stems of the quarter notes should be in different directions).
The good news is that it has been fixed last October in version 2.19.16.

The fix involved a fair amount of code, including C++ code.  So there is
no reasonable hope to get something equivalent working in
version 2.18.2: the only reasonable cure is upgrading.

Yes, it is embarrassing that this bug persisted for so long.

-- 
David Kastrup