A few questions about Scheme functions
I have a few questions about using Scheme to build Lilypond data.
1. I have some Scheme code that builds custom articulations (more
precisely, it attaches metadata to NoteEvents, and the only way I found
to make this possible is via putting it in a custom, invisible
articulation, but let's not digress too much).
The code I use to declare this custom articulation is:
\layout { \context { \Score
scriptDefinitions = #(append default-script-alist `(
("void" . ((stencil . #f) (direction . ,UP) (avoid-slur . ignore)))
)) } }
However, this is Lilypond code, not Scheme code. My code is in a .scm
file, which is read in the user files as #(load "code.scm").
Does there exist a way to modify the articulations table from inside a
Scheme code block (such as (begin ) )? I tried wrapping this
inside #{ ... #}, but to no effect.
2. A variant of 1. above: say I have a music expression such as
voiceone = \relative {
c d e f g \mymacro { a b c }
}
where mymacro is defined as
mymacro = #(define-music-function (parser location music) (ly:music?)
; ...
(let (music-rel #{ \relative $music #}) ...))
This works as intended (i.e. the third note is interpreted as a c', not a
c). However, trying to build the exact same expression in a Scheme way
does not work:
(let (music-rel (make-music 'RelativeOctaveMusic 'element music)) ...)
leaves the music expression untouched.
So the two questions are:
2.1 From within the \mymacro function, does there exist a way to know
that we are called in a \relative scope?
2.2 Does there exist a “clean Scheme” (no #{ #}) way to interpret the
parameter as relative music?
3. I have a function that takes some music as input and produces a lyrics
variable, for instance:
voiceone = \relative {
% the \metadata macro adds some invisible articulation, nothing is
produced
c d e\metadata "foobar" f g ...
%^ HERE ^
}
#(define (myfunction music) ... )
; this produces a Lyrics variable containing text "foobar" at the
appropriate position
\score { \new PianoStaff <<
\new Staff << \voiceone >>
% this produces something equivalent to \lyrics { ""2 "foobar"4 }
\new Lyrics << #(myfunction voiceone) >>
}
My code for now works as I intend it to, but I would like to add info to
the PDF file so that a mouse click on the "foobar" lyrics goes to the
place where \metadata is called (at the HERE comment above)?
(Maybe something with “ly:set-origin!” ? The documentation of this
function is not crystal clear...)
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A few questions about Scheme functions
I have a few questions about using Scheme to build Lilypond data.
1. I have some Scheme code that builds custom articulations (more
precisely, it attaches metadata to NoteEvents, and the only way I found
to make this possible is via putting it in a custom, invisible
articulation, but let's not digress too much).
The code I use to declare this custom articulation is:
\layout { \context { \Score
scriptDefinitions = #(append default-script-alist `(
("void" . ((stencil . #f) (direction . ,UP) (avoid-slur . ignore)))
)) } }
However, this is Lilypond code, not Scheme code. My code is in a .scm
file, which is read in the user files as #(load "code.scm").
Does there exist a way to modify the articulations table from inside a
Scheme code block (such as (begin ) )? I tried wrapping this
inside #{ ... #}, but to no effect.
2. A variant of 1. above: say I have a music expression such as
voiceone = \relative {
c d e f g \mymacro { a b c }
}
where mymacro is defined as
mymacro = #(define-music-function (parser location music) (ly:music?)
; ...
(let (music-rel #{ \relative $music #}) ...))
This works as intended (i.e. the third note is interpreted as a c', not a
c). However, trying to build the exact same expression in a Scheme way
does not work:
(let (music-rel (make-music 'RelativeOctaveMusic 'element music)) ...)
leaves the music expression untouched.
So the two questions are:
2.1 From within the \mymacro function, does there exist a way to know
that we are called in a \relative scope?
2.2 Does there exist a “clean Scheme” (no #{ #}) way to interpret the
parameter as relative music?
3. I have a function that takes some music as input and produces a lyrics
variable, for instance:
voiceone = \relative {
% the \metadata macro adds some invisible articulation, nothing is
produced
c d e\metadata "foobar" f g ...
%^ HERE ^
}
#(define (myfunction music) ... )
; this produces a Lyrics variable containing text "foobar" at the
appropriate position
\score { \new PianoStaff <<
\new Staff << \voiceone >>
% this produces something equivalent to \lyrics { ""2 "foobar"4 }
\new Lyrics << #(myfunction voiceone) >>
}
My code for now works as I intend it to, but I would like to add info to
the PDF file so that a mouse click on the "foobar" lyrics goes to the
place where \metadata is called (at the HERE comment above)?
(Maybe something with “ly:set-origin!” ? The documentation of this
function is not crystal clear...)
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a few questions
Hi all,
I have a few questions which I need help with.
I not sure what the /relative is for?
Also, how do I make chords?
Here is a little code I'd written below, can some one let me know
if I'm on the right track?
Steph
\relative c {
\clef treble
\key c \major
\time 4/4
} c4 do every from go from every do c4
lower = \relative c {
\clef bass
\key c \major
\time 4/4
} g3 from every do can do every from g1
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Re: a few questions
Hi Stephanie,
I'm not sure where the track is supposed to lead to, so it's hard to say
whether you're on the right one.
The code you've written so far doesn't do anything (and what do you mean with
c4 do every from go from every do c4?).
Anyway, there's a learning manual on the Lilypond website (Manuals --
Learning) - you should find most of your basic questions answered there if you
work through that (doesn't take that long), and the notation reference (Manuals
-- Notation) for the more difficult ones. Of course, you can always direct
questions to the list, but they probably should be more specific ...
best,
Rob
-
Von meinem Fliewatüüt gesendet.
On 27 Aug 2013, at 11:36, Stephanie sim.musicsch...@gmail.com wrote:
Hi all,
I have a few questions which I need help with.
I not sure what the /relative is for?
Also, how do I make chords?
Here is a little code I'd written below, can some one let me know if I'm on
the right track?
Steph
\relative c {
\clef treble
\key c \major
\time 4/4
} c4 do every from go from every do c4
lower = \relative c {
\clef bass
\key c \major
\time 4/4
} g3 from every do can do every from g1
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Re: a few questions
Here's a discussion of \relative mode: http://lilypond.org/doc/v2.16/Documentation/learning/simple-notation The easiest way to enter notes is by using \relative mode. In this mode, the octave is chosen automatically by assuming the following note is always to be placed closest to the previous note, i.e., it is to be placed in the octave which is within three staff spaces of the previous note. And a chord (or other harmonic interval) is created using like this: c e g4 c f a2 More on chords here: http://lilypond.org/doc/v2.16/Documentation/learning/combining-notes-into-chords Cheers, -Paul -- View this message in context: http://lilypond.1069038.n5.nabble.com/a-few-questions-tp149856p149870.html Sent from the User mailing list archive at Nabble.com. ___ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
Re: a few questions
Stephanie sim.musicsch...@gmail.com wrote:
I have a few questions which I need help with.
I not sure what the /relative is for?
Ordinarily, notes in Lilypond specify not only the pitch, but the
octave. Middle C is c' -- third-space C is c'' -- two ledger lines C is
c'''. Similarly, 2nd space bass clef C is c -- two ledger lines below
is c, -- octave below that is c,, . Note that c4 means a quarter
note. The 4 is not an octave number.
It can get tedious to write all those ticks and commas on every note.
So, most people use relative mode, where each note is assumed to be
close to the note just before. \relative c says that the following
block is starting close to the C below middle C. That applies only to
the stuff INSIDE the braces.
Did you type your message on a phone? I'm wondering if it was
auto-correct that changed your scale to:
c4 do every from go from every do c4
So, you probably want something similar to this:
upper = \relative c' {
\clef treble
\key c \major
\time 4/4
c4 d e f | g4 f e d | c1
}
lower = \relative c {
\clef bass
\key c \major
\time 4/4
g4 f e d | c4 d e f | g1
}
\new PianoStaff
\new Staff \upper
\new Staff \lower
--
Tim Roberts, t...@probo.com
Providenza Boekelheide, Inc.
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Re: a few questions
Note that the closing ” were cut off from the end of the example in the
email.
Stan
On Aug 27, 2013, at 12:40 PM, Tim Roberts t...@probo.com wrote:
similar to this:
upper = \relative c' {
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A few questions
Hi... is there really no one who ca´n help me with
this. Please...?
I have a few
questions.
1. Why does the following create a .pdf and a
midi, but when I play the .midi file it just stops... it never plays
anything?
2. I want it only to show the chord names, not
the notes. how can I do that?
3. How do I generate "\" signs inside the lines,
so I can show when to play the Chord that way? An example:4 strokes on
the guitar:\ \ \ \
4. Another question: I want to create aly
file with only one D-chord played on the guitar. How is that
possible?
-
\version "2.6.3"
\header{title = "Improvise"composer =
"Jannik Jeppesen"}
chordline = \chordmode { \repeat volta
20 { a1:m c g e:m }}
\score {
\chordline \layout {} }\score {
\unfoldRepeats \chordline \midi { \tempo 4 = 120 }}
---
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Re: A few questions
On 26-Dec-05, at 12:52 PM, Jannik Jeppesen wrote:
I have a few questions.
Please allow a few days for responses.
1. Why does the following create a .pdf and a midi, but when I play
the .midi file it just stops... it never plays anything?
Some versions of lilypond have bugs with midi generation. What version
of lilypond are you using?
3. How do I generate \ signs inside the lines, so I can show when to
play the Chord that way? An example: 4 strokes on the guitar: \ \ \ \
I think it's \\.
c4^\markup{ \\ \\ \\ \\}
- Graham
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Re: A few questions
What version
of lilypond are you using?
I am using version 2.6.3
I have a few questions.
Please allow a few days for responses.
1. Why does the following create a .pdf and a midi, but when I play
the .midi file it just stops... it never plays anything?
Some versions of lilypond have bugs with midi generation. What version
of lilypond are you using?
3. How do I generate \ signs inside the lines, so I can show when to
play the Chord that way? An example: 4 strokes on the guitar: \ \ \ \
I think it's \\.
c4^\markup{ \\ \\ \\ \\}
- Graham
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Re: A few questions
1. Why does the following create a .pdf and a midi, but when I play
the .midi file it just stops... it never plays anything?
perhaps version 2.6.3 has some bug in midi generation. If I remember it
was fixed in 2.6.4, but I'm not sure. in version 2.7.x, your example yelds
a correct midi file.
2. I want it only to show the chord names, not the notes. how can
I do that?
you have to use a ChordNames context in the \score section
3. How do I generate \ signs inside the lines, so I can show when to
play the Chord that way? An example: 4 strokes on the guitar: \ \ \ \
by inside the lines you mean inside the staff? if I get you right, you
have to set the noteheads to slashes. these are / signs, not \. For
the last one I guess you should use markups with \\.
Is this what you want?:
%%
\header
{
title = Improvise
composer = Jannik Jeppesen
}
chordline = \chordmode {
\repeat volta 20 {
a1:m c g e:m
}
}
rythmline = \relative c''
{
\override NoteHead #'style = #'slash
\override Stem #'transparent = ##t % or not
\repeat volta 20 {
b4 b b b
b b b b
b b b b
b b b b
}
}
\score {
\context ChordNames {
\chordline
}
\context Staff {
\rythmline
}
\layout {}
}
\score {
\unfoldRepeats \chordline
\midi { \tempo 4 = 120 }
}
%% EOF
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Re: A few questions
On Tue, 27 Dec 2005, Jannik Jeppesen wrote: Hi... is there really no one who ca?n help me with this. Please...? I have a few questions. As a general piece of advice that unfortunately not very helpful with any of the questions that you asked, splitting up your questions is a very good idea. Along with this, instead of an email subject reading A few questions or I have a question or Lilypond is confusing, a subject that directly pertains to the question at hand would help the community in a number of ways. Most helful to yourself in the sense that those of us who might know enough about midi (for instance) could help you with a midi-related question; but also helpful to other users who might have the same question, but who have not (yet) asked the community. Good luck. I think you'll find that if you stick with Lilypond, the quality of output alone is very rewarding, but the way it all works -- text based entry, so having a generally logical organization system -- saves time and makes one wonder why one ever used Finale or Sibelius before. Josiah___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
Re: A few questions
Hi VSD thanx for your answer. The file you have created is perfect. But it
seems that I have some midi problems... It opens in media player, but it
does not play anything.
I am using version 2.6.4-5 on windows any Ideas?
Hi Josiah... I am sorry about my title of this question. I usually give my
questions good titles. dont know what happened this time:-) Sorry.
%%
\header
{
title = Improvise
composer = Jannik Jeppesen
}
chordline = \chordmode {
\repeat volta 20 {
a1:m c g e:m
}
}
rythmline = \relative c''
{
\override NoteHead #'style = #'slash
\override Stem #'transparent = ##t % or not
\repeat volta 20 {
b4 b b b
b b b b
b b b b
b b b b
}
}
\score {
\context ChordNames {
\chordline
}
\context Staff {
\rythmline
}
\layout {}
}
\score {
\unfoldRepeats \chordline
\midi { \tempo 4 = 120 }
}
%% EOF
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Re: A few questions
Hi, it now looks as this:
EE E E7 A7A7
| / / / / | / / / / | / / / / | / / / / | / / / / | / / /
/ |
E E B7A7 E B7
| / / / / | / / / / | / / / / | / / / / | / / / / | / / /
/ |
I want it to look like this:
EE E E7
| / / / / | / / / / | / / / / | / / / / |
A7A7 E E
| / / / / | / / / / | / / / / | / / / / |
H7A7 E H7
| / / / / | / / / / | / / / / | / / / / |
1. How does I tell lilly how many bars in each line? and that it shall not
start first bar moved in to the paper?
2. How does I change B7 to H7 ? (the danish way of a B7?)
3. Is this possible:
| E / / / | E / / / | E / / / | E7 / / / |
| A7 / / / | A7 / / / | E / / / | E / / / |
| H7 / / / | A7 / / / | E / / / | / H7 / / |
Best reguards
Jannik
%
\header
{
title = 12 takters Blues
composer = Jannik Jeppesen
}
chordline = \chordmode {
\repeat volta 20 {
e1 e e e:7
a:7 a:7 e e
b:7 a:7 e b:7
}
}
rythmline = \relative c''
{
\override NoteHead #'style = #'slash
\override Stem #'transparent = ##t
\repeat volta 20 {
b4 b b b b b b b b b b b b b b b
b4 b b b b b b b b b b b b b b b
b4 b b b b b b b b b b b b b b b
}
}
\score {
\context ChordNames {
\chordline
}
\context Staff {
\rythmline
}
\layout {}
}
\score {
\unfoldRepeats \chordline
\midi { \tempo 4 = 120 }
}
%%
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Re: A few questions
Am 2005-12-27 um 22:37 schrieb Jannik Jeppesen:
1. and that it shall not start first bar moved in to the paper?
\layout { indent = 0\cm }
2. How does I change B7 to H7 ? (the danish way of a B7?)
use \germanChords in the ChordNames context
Greetlings from Lake Constance
---
fiëé visuëlle
Henning Hraban Ramm
http://www.fiee.net
http://angerweit.tikon.ch/lieder/
http://www.cacert.org (I'm an assurer)
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Re: A few questions
Am 2005-12-27 um 23:40 schrieb Jannik Jeppesen: use \germanChords in the ChordNames context Have tried some different versions now, is it like this you meen? I cant get it to whrite H7 It's \semiGermanChords, sorry. But I don't think it'll do anything if you put it *after* your chords... Please get used to look at the docs yourself! This was in http://www.lilypond.org/doc/v2.7/Documentation/user/ lilypond/Printing-chord-names.html Greetlings from Lake Constance --- fiëé visuëlle Henning Hraban Ramm http://www.fiee.net http://angerweit.tikon.ch/lieder/ http://www.cacert.org (I'm an assurer) ___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
Re: A few questions
Hi, it now looks as this: [...] I want it to look like this: please read the manual :) in this case, use line breaks: put \break after each e.g 4 bars ___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
Re: A few questions
Hi, thanks. offcause... that helped:-) believe me or not, but I am really reading the manual... But it really just slips my mind everytime I need something new. I never can find what I am looking for. Is it possible to Make all the bars exact the same size? It does not look good that the bars does not stand exactly above each other Any Ideas (or just a link to the manual:-)) Jannik ___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
Re: A few questions
On Wed, 28 Dec 2005, Jannik Jeppesen wrote: Is it possible to Make all the bars exact the same size? It does not look good that the bars does not stand exactly above each other Any Ideas (or just a link to the manual:-)) If you search through the mailing list archives, you will find extensive discussion on this matter. Josiah ___ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
Re: A few questions
Don't know if this will help but I ran into this same problem and
discovered that if I changed the .midi to .mid everything played, don't
know why but it's consistent that I have to do this.
Jay
Jannik Jeppesen wrote:
Hi VSD thanx for your answer. The file you have created is perfect.
But it seems that I have some midi problems... It opens in media
player, but it does not play anything.
I am using version 2.6.4-5 on windows any Ideas?
Hi Josiah... I am sorry about my title of this question. I usually
give my questions good titles. dont know what happened this
time:-) Sorry.
%%
\header
{
title = Improvise
composer = Jannik Jeppesen
}
chordline = \chordmode {
\repeat volta 20 {
a1:m c g e:m
}
}
rythmline = \relative c''
{
\override NoteHead #'style = #'slash
\override Stem #'transparent = ##t % or not
\repeat volta 20 {
b4 b b b
b b b b
b b b b
b b b b
}
}
\score {
\context ChordNames {
\chordline
}
\context Staff {
\rythmline
}
\layout {}
}
\score {
\unfoldRepeats \chordline
\midi { \tempo 4 = 120 }
}
%% EOF
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Jay Hamilton
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A few questions
Hi all.
I have a few questions.
1. Why does the following create a .pdf and a midi,
but when I play the .midi file it just stops... it never plays
anything?
2. I want it only to show the chord names, not the
notes. how can I do that?
3. How do I generate "\" signs inside the lines, so
I can show when to play the Chord that way? An example:4 strokes on the
guitar:\ \ \ \
4. Another question: I want to create aly
file with only one D-chord played on the guitar. How is that
possible?
-
\version "2.6.3"
\header{title = "Improvise"composer =
"Jannik Jeppesen"}
chordline = \chordmode { \repeat volta 20
{ a1:m c g e:m }}
\score {
\chordline \layout {} }\score {
\unfoldRepeats \chordline \midi { \tempo 4 = 120 }}
---
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