Re: Grace notes causing inverted stems in \tabFullNotation

[Phil Burfitt]

From: "David Kastrup" <address@hidden>
Subject: Re: Grace notes causing inverted stems in \tabFullNotation

> 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


I was aware of the grace synchronization problem (and solution) in multiple 
voices, but surprisingly I hadn't encountered the stem directions one 
before. Reading the issue 630 link you gave, I see a workaround is to place 
a \voiceXXX command after the grace note...and that seems to work - at least 
in the minimal example I gave.

Yes, time to upgrade I think.

Many thanks for your time and work,

Phil.