LilyPond Beginnershandleiding

Hoofdstuk 4: Tweaking output 130
4 6
4 6
On to bar three and the start of the Moderato section. The tutorial showed how to add bold
text with the \markup command, so adding “Moderato” in bold is easy. But how do we merge
notes in different voices together? This is where we need to turn again to the Notation Reference
for help. A search for “merge” in the Notation Reference index quickly leads us to the commands
for merging differently headed and differently dotted notes in Sectie “Collision resolution” in
Notatie-handleiding. In our example we need to merge both types of note for the duration of
the polyphonic section in bar 3, so using the information we find in the Notation Reference we
add
\mergeDifferentlyHeadedOn
\mergeDifferentlyDottedOn
to the start of that section and
\mergeDifferentlyHeadedOff
\mergeDifferentlyDottedOff
to the end, giving:
4 6
4 6
Moderato
These overrides have merged the two F-sharp notes, but not the two on D. Why not? The
answer is there in the same section in the Notation Reference – notes being merged must have
stems in opposite directions and two notes cannot be merged successfully if there is a third note
in the same note column. Here the two D’s both have upward stems and there is a third note –
the C. We know how to change the stem direction using \stemDown, and the Notation Reference
also says how to move the C – apply a shift using one of the \shift commands. But which one?
The C is in voice two which has shift off, and the two D’s are in voices one and three, which have
shift off and shift on, respectively. So we have to shift the C a further level still using \shiftOnn
to avoid it interfering with the two D’s. Applying these changes gives:
rhMusic = \relative c'' {
\new Voice {
r2 c4.\( g8 |
\once \override Tie.staff-position = #3.5
bes1~ |
\bar "||"
\time 6/4
bes2.^\markup { \bold "Moderato" } r8
\mergeDifferentlyHeadedOn
\mergeDifferentlyDottedOn
% Start polyphonic section of four voices