@subsubsection The piano staff
Keyboard instruments are usually notated with Piano staves.
-These are two normal staves coupled with a brace. The staves
+These are two or more normal staves coupled with a brace. The staves
are largely independent, but sometimes voices can cross between the
two staves. The same notation is also used for harps and other key
instruments. The @internalsref{PianoStaff} is especially built to
handle this cross-staffing behavior. In this section we discuss the
@internalsref{PianoStaff} and some other pianistic peculiarities.
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@knownissues
Dynamics are not centered, but workarounds do exist. See the