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3.4.3 Kotta létrehozása az alapoktól
After gaining some facility with writing LilyPond code, you may find that it is easier to build a score from scratch rather than modifying one of the templates. You can also develop your own style this way to suit the sort of music you like. Let’s see how to put together the score for an organ prelude as an example.
We begin with a header section. Here go the title, name of composer, etc, then come any variable definitions, and finally the score block. Let’s start with these in outline and fill in the details later.
We’ll use the first two bars of Bach’s prelude based on Jesu, meine Freude which is written for two manuals and pedal organ. You can see these two bars of music at the bottom of this section. The top manual part has two voices, the lower and pedal organ one each. So we need four music definitions and one to define the time signature and key:
\version "2.21.0"
\header {
title = "Jesu, meine Freude"
composer = "J S Bach"
}
TimeKey = {
\time 4/4
\key c \minor
}
ManualOneVoiceOneMusic = { s1 }
ManualOneVoiceTwoMusic = { s1 }
ManualTwoMusic = { s1 }
PedalOrganMusic = { s1 }
\score {
}
For now we’ve just used a spacer note, s1,
instead of the real music. We’ll add that later.
Next let’s see what should go in the score block. We simply mirror the staff structure we want. Organ music is usually written on three staves, one for each manual and one for the pedals. The manual staves should be bracketed together, so we need to use a PianoStaff for them. The first manual part needs two voices and the second manual part just one.
\new PianoStaff <<
\new Staff = "ManualOne" <<
\new Voice {
\ManualOneVoiceOneMusic
}
\new Voice {
\ManualOneVoiceTwoMusic
}
>> % end ManualOne Staff context
\new Staff = "ManualTwo" <<
\new Voice {
\ManualTwoMusic
}
>> % end ManualTwo Staff context
>> % end PianoStaff context
Next we need to add a staff for the pedal organ. This goes underneath the PianoStaff, but it must be simultaneous with it, so we need angle brackets around the two. Missing these out would generate an error in the log file. It’s a common mistake which you’ll make sooner or later! Try copying the final example at the end of this section, remove these angle brackets, and compile it to see what errors it generates.
<< % PianoStaff and Pedal Staff must be simultaneous
\new PianoStaff <<
\new Staff = "ManualOne" <<
\new Voice {
\ManualOneVoiceOneMusic
}
\new Voice {
\ManualOneVoiceTwoMusic
}
>> % end ManualOne Staff context
\new Staff = "ManualTwo" <<
\new Voice {
\ManualTwoMusic
}
>> % end ManualTwo Staff context
>> % end PianoStaff context
\new Staff = "PedalOrgan" <<
\new Voice {
\PedalOrganMusic
}
>>
>>
It is not necessary to use the simultaneous construct
<< .. >> for the manual two staff and the pedal organ staff,
since they contain only one music expression, but it does no harm,
and always using angle brackets after \new Staff is a good
habit to cultivate in case there are multiple voices. The opposite
is true for Voices: these should habitually be followed by braces
{ .. } in case your music is coded in several variables
which need to run consecutively.
Let’s add this structure to the score block, and adjust the indenting.
We also add the appropriate clefs, ensure stems, ties and slurs in
each voice on the upper staff point to the right direction with
\voiceOne and \voiceTwo, and enter the time signature
and key to each staff using our predefined variable, \TimeKey.
\score {
<< % PianoStaff and Pedal Staff must be simultaneous
\new PianoStaff <<
\new Staff = "ManualOne" <<
\TimeKey % set time signature and key
\clef "treble"
\new Voice {
\voiceOne
\ManualOneVoiceOneMusic
}
\new Voice {
\voiceTwo
\ManualOneVoiceTwoMusic
}
>> % end ManualOne Staff context
\new Staff = "ManualTwo" <<
\TimeKey
\clef "bass"
\new Voice {
\ManualTwoMusic
}
>> % end ManualTwo Staff context
>> % end PianoStaff context
\new Staff = "PedalOrgan" <<
\TimeKey
\clef "bass"
\new Voice {
\PedalOrganMusic
}
>> % end PedalOrgan Staff
>>
} % end Score context
That completes the structure. Any three-staff organ music will have a similar structure, although the number of voices may vary. All that remains now is to add the music, and combine all the parts together.
\version "2.21.0"\header { title = "Jesu, meine Freude" composer = "J S Bach" } TimeKey = { \time 4/4 \key c \minor } ManualOneVoiceOneMusic = \relative { g'4 g f ees d2 c2 } ManualOneVoiceTwoMusic = \relative { ees'16 d ees8~ 16 f ees d c8 d~ d c~ c c4 b8 c8. g16 c b c d } ManualTwoMusic = \relative { c'16 b c8~ 16 b c g a8 g~ 16 g aes ees f ees f d g aes g f ees d e8~ 8es16 f ees d } PedalOrganMusic = \relative { r8 c16 d ees d ees8~ 16 a, b g c b c8 r16 g ees f g f g8 c,2 } \score { << % PianoStaff and Pedal Staff must be simultaneous \new PianoStaff << \new Staff = "ManualOne" << \TimeKey % set time signature and key \clef "treble" \new Voice { \voiceOne \ManualOneVoiceOneMusic } \new Voice { \voiceTwo \ManualOneVoiceTwoMusic } >> % end ManualOne Staff context \new Staff = "ManualTwo" << \TimeKey \clef "bass" \new Voice { \ManualTwoMusic } >> % end ManualTwo Staff context >> % end PianoStaff context \new Staff = "PedalOrgan" << \TimeKey \clef "bass" \new Voice { \PedalOrganMusic } >> % end PedalOrgan Staff context >> } % end Score context
![[image of music]](../77/lily-e0718232.png)
| [ << Alapfogalmak ] | [Címoldal][Tartalom][Tárgymutató][ ? ] | [ A kimenet finomhangolása >> ] | ||
| [ < Négyszólamú vegyeskar ] | [ Fel: A sablonok kibővítése ] | [ Kevesebb gépelés változókkal és függvényekkel > ] | ||
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