dak wrote
> Yes.  For things like stem directions, there may be a default callback
> which makes the decision about whether to put the stem upwards or
> downwards, and calling this fallback might trigger other typesetting
> decisions prematurely.  Also, one does not get to see whether the
> ultimate direction decision was due to \voiceOne or such a tie-breaking
> callback.
> 
> This may or may not be the case for rest direction, but because I was
> too lazy to double-check, I went for ly:grob-property-data.

Ok, good to know.  It sounds like if ly:grob-property-data works for a given
case, then it's the safer choice of the two.  Thanks for the explanation.

-Paul Morris



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