@node Automatic staff changes
-@unnumberedsubsubsec Automatic staff changes
+@subsubsection Automatic staff changes
@cindex Automatic staff changes
Voices can be made to switch automatically between the top and the bottom
@node Manual staff switches
-@unnumberedsubsubsec Manual staff switches
+@subsubsection Manual staff switches
@cindex manual staff switches
@cindex staff switch, manual
@node Pedals
-@unnumberedsubsubsec Pedals
+@subsubsection Pedals
@cindex Pedals
Pianos have pedals that alter the way sound is produced. Generally, a
Notation Reference: @ref{Ties} (laissez vibrer).
@node Staff switch lines
-@unnumberedsubsubsec Staff switch lines
+@subsubsection Staff switch lines
@cindex follow voice
@node Cross staff stems
-@unnumberedsubsubsec Cross staff stems
+@subsubsection Cross staff stems
Chords that cross staves may be produced by increasing the length
of the stem in the lower staff, so it reaches the stem in the upper