Quoting Till Rettig <address@hidden>:
Hi,
I just noticed that the staff contexts of the examples in 1.1.3.5 are
PianoStaff. In 1.6 there is only mentioned GrandStaff. Which one is
the preferred one to be used? I would mention both in 1.6, but I
think we should develop guidelines which context names to use. Maybe
the PianoStaff is (at least to others than English native speakers)
more understandable? So the context would be called PianoStaff in
1.6.1 but I would also mention that there is a GrandStaff context?
So far I have understood that they are both equal. Is this true?
In version 2.11, the only difference between the two is that
PianoStaff contains the instrument name engraver. In version 2.10
and earlier, there were more differences. The PianoStaff then produced
a fixed distance between the staves, since the cross-staff
slurs and beams didn't work otherwise. This limitation has been fixed
in 2.11.