@end menu
@node Chorded notes
-@unnumberedsubsubsec Chorded notes
+@subsubsection Chorded notes
@cindex Chords
Notation Reference: @ref{Introducing chord names}.
-Snippets: @lsrdir{simultaneous}.
+Snippets: @lsrdir{Simultaneous,Simultaneous-notes}.
@refbugs
@node Clusters
-@unnumberedsubsubsec Clusters
+@subsubsection Clusters
@cindex cluster
@seealso
-Snippets: @lsrdir{simultaneous}.
+Snippets: @lsrdir{Simultaneous,Simultaneous-notes}.
Internals Reference: @internalsref{ClusterSpanner},
@internalsref{ClusterSpannerBeacon},
@internalsref{Cluster_spanner_engraver}.
-Examples: @lsr{contemporary,cluster@/.ly}.
+Examples: @c @lsr{contemporary,cluster@/.ly}.
@end menu
@node Collision resolution
-@unnumberedsubsubsec Collision resolution
+@subsubsection Collision resolution
@cindex merging notes
@cindex note collisions
@seealso
-Snippets: @lsrdir{simultaneous}.
+Snippets: @lsrdir{Simultaneous,Simultaneous-notes}.
Internals Reference: the objects responsible for resolving
collisions are @internalsref{NoteCollision} and
@node Automatic part combining
-@unnumberedsubsubsec Automatic part combining
+@subsubsection Automatic part combining
@cindex automatic part combining
@cindex part combiner
@cindex combining parts
Music Glossary: @rglos{a due}.
-Snippets: @lsrdir{simultaneous}.
+Snippets: @lsrdir{Simultaneous,Simultaneous-notes}.
Internals Reference: @internalsref{PartCombineMusic}, @internalsref{Voice}.
@node Writing music in parallel
-@unnumberedsubsubsec Writing music in parallel
+@subsubsection Writing music in parallel
@cindex Writing music in parallel
@cindex Interleaved music
@seealso
-Snippets: @lsrdir{simultaneous}
+Snippets: @lsrdir{Simultaneous,Simultaneous-notes}