@c really awkward; I just shoved this in here from the tutorial.
@node A lead sheet
-@unnumberedsubsubsec A lead sheet
+@subsubsection A lead sheet
@cindex Lead sheets
@cindex chords
@node Introducing chord names
-@unnumberedsubsubsec Introducing chord names
+@subsubsection Introducing chord names
@cindex chord names
LilyPond has support for printing chord names. Chords may be entered
@node Chords mode
-@unnumberedsubsubsec Chords mode
+@subsubsection Chords mode
@cindex Chords mode
In chord mode sets of pitches (chords) are entered with normal note
@node Printing chord names
-@unnumberedsubsubsec Printing chord names
+@subsubsection Printing chord names
@cindex printing chord names
@cindex chord names