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Re: rolled chords in mulivoice classical guitar score

From: Tom Cloyd
Subject: Re: rolled chords in mulivoice classical guitar score
Date: Tue, 14 Oct 2008 07:29:09 -0700
User-agent: Thunderbird (X11/20080925)

Maybe. Probably. If I could get it to work.

The problem is that it start a new staff. I need arpeggios across voices
in arbitrary locations - of course.

Here's the structure of my file:

\header stuff

staffClassicalGuitar = { my music, in 2 & 3 part voicing}

\score {
 \new Staff {
   (staff definitions stuff)



\paper ....

I got this structure right from the  Lilypond 2.11.60 documentation. But
I cannot find a place to put this stuff -

\new Staff \with {
 \consists "Span_arpeggio_engraver"

where it will be accepted. Starting a new staff in the middle of a
measure makes no sense. OR in the middle of a line. So, I assume the
"\with..." thing needs to go into the existing "\new Staff..." I already
have. But nothing I try works - it all causes prodigious errors. For
example, this is NOT accepted...

\score {
 \new Staff \with {
   \consists "Span_arpeggio_engraver"
   \clef treble
   \key e \minor
   \time 3/4
   \tempo "" 4 = 90

I've tried all the variations I can imagine, and I cannot find any
real-world examples that show me the solution, and I cannot make sense
of things logically. Why do I have to create a new staff to get a single
arpeggio? If I want to do this arbitrarily, why is the setup for it so
arcane? I must not be understanding something, but can't see what.

Any help would be appreciated (!).


Can you suggest what I need to do?

Jonathan Kulp wrote:
This snippet appears to do what you're asking:

Go down to where it says "Creating arpeggios across notes in different voices."


% ****************************************************************
% Start cut-&-pastable-section
% ****************************************************************

\paper {
  #(define dump-extents #t)

  indent = 0\mm
  line-width = 160\mm
  force-assignment = #""
  line-width = #(- line-width (* mm  3.000000))

\layout {


% ****************************************************************
% ly snippet:
% ****************************************************************
\sourcefilename ""
\sourcefileline 0
%% Do not edit this file; it is auto-generated from LSR
%% This file is in the public domain.
\version "2.11.62"

\header {
  lsrtags = "expressive-marks"

  texidoces = "
Se puede trazar un símbolo de arpegio entre notas de distintas
voces que están sobre el mismo pentagrama si el grabador
@code{Span_arpeggio_engraver} se traslada al contexto de
@code{Staff} context:

  doctitlees = "Crear arpegios entre notas de voces distintas"

  texidoc = "
An arpeggio can be drawn across notes in different voices on the same
staff if the @code{Span_arpeggio_engraver} is moved to the @code{Staff}

  doctitle = "Creating arpeggios across notes in different voices"
} % begin verbatim
\new Staff \with {
  \consists "Span_arpeggio_engraver"
\relative c' {
  \set Staff.connectArpeggios = ##t
    { <e' g>4\arpeggio <d f> <d f>2 } \\
    { <d, f>2\arpeggio <g b>2 }

% ****************************************************************
% end ly snippet
% ****************************************************************

Tom Cloyd wrote:

After digging around considerably in the excellent Lilypond documentation (am running 2.11.60 on Kubuntu Linux 8.04.1), and running a number of experiments, I'm defeated on this problem.

A simple test case: I have two voices in a single staff. Periodically, I want to indicate that the notea co-occuring at a given point are to be played as a "rolled" arpeggio. There is NO chord notated - just two voices with single notes. Please don't suggest I merge the voices. That's not the solution I'm looking for.

P. 90 of Lilypond Notation reference illustrates a rolled arpeggio across different notes in the same staff, but it involves notes in chord clusters. Besides, my Lilypond doesn't at all like this stuff (from the reference):

\new Staff \with {
 \consists "Span_arpeggio_engraver"
\relative c' {...

I get this error - "warning: cannot find file: `consists' "

So, even if I HAD chord clusters, I'd still have a problem.

This rolled arpeggio business is very common in classical guitar music. I'm a little surprised there isn't some simple way to indicate it, but...maybe I'm missing something.

Any help would be much appreciated!



Tom Cloyd, MS MA, LMHC - Private practice Psychotherapist
Bellingham, Washington, U.S.A: (360) 920-1226
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