multimeasure rest bug?
Hello,
I have found a peculiar thing concerning multi measure rests. In trying to use
R1 to center a full rest in a partial bar of a piece the rest disappears when R1
is used as R1*1/4 in order to create the correct duration of the rest.
Below is the relevant snippet.
\version "2.12.0"
global = {
\key c \major
\time 3/4
}
right = \relative c'' {
\global
\override Staff.TimeSignature #'style = #'mensural
\partial 4*1
a4*1/4 g f g
\bar":"
a2*1/4 a b c b1*1/4 a g2*1/4 f1*1/4 e2*1/4
}
left = \relative c' {
\global
\override Staff.TimeSignature #'style = #'mensural
R1*1/4 d2*1/4 d d a g a c b1*1/4 a c2*1/4
}
\score {
<<
\new PianoStaff \with {
instrumentName = "Organ"
} <<
\new Staff = "right"\right
\new Staff = "left" \left >> >> }
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Re: multimeasure rest bug?
Trying it out myself it occurred to me that what you're possibly running
into is that full bar rests need to occupy full bars. I haven't checked
the docs on that matter but I'd bet that's the reason. If you change
your R1*1/4 o r1*1/4 you'll get a whole rest. It won't be centered
without some extra adjustments, though.
Perhaps you could fake the first "measure" of the left hand with
something like:
s4*1/4 r1*1/8 s4*1/4 d2*1/4 d d a g a c b1*1/4 a c2*1/4
I tried this and it looks about centered.
Shane Brandes wrote:
Hello,
I have found a peculiar thing concerning multi measure rests. In trying to use
R1 to center a full rest in a partial bar of a piece the rest disappears when R1
is used as R1*1/4 in order to create the correct duration of the rest.
Below is the relevant snippet.
\version "2.12.0"
global = {
\key c \major
\time 3/4
}
right = \relative c'' {
\global
\override Staff.TimeSignature #'style = #'mensural
\partial 4*1
a4*1/4 g f g
\bar":"
a2*1/4 a b c b1*1/4 a g2*1/4 f1*1/4 e2*1/4
}
left = \relative c' {
\global
\override Staff.TimeSignature #'style = #'mensural
R1*1/4 d2*1/4 d d a g a c b1*1/4 a c2*1/4
}
\score {
<<
\new PianoStaff \with {
instrumentName = "Organ"
} <<
\new Staff = "right"\right
\new Staff = "left" \left >> >> }
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Re: multimeasure rest bug?
It seems that you spend large efforts on scaling all durations, just to
be able to obtain the desired time signature. The same result can be
obtained much easier as shown in the following examples. Also, the
solution to your multimeasure rest problem is probably easiest to solve
by changing the measure length used internally by LilyPond:
\version "2.12.0"
global = {
\key c \major
}
right = \relative c'' {
\global
\override Score.TimeSignature #'style = #'mensural
\time 4/4
\set Timing.timeSignatureFraction = #'(3 . 4)
a4 g f g
\bar":"
\once \override Score.TimeSignature #'stencil = ##f
\time 3/1
a2 a b c b1 a g2 f1 e2
}
left = \relative c' {
\global
R1 d2 d d a g a c b1 a c2
}
\score {
<<
\new PianoStaff \with {
instrumentName = "Organ"
} <<
\new Staff = "right"\right
\new Staff = "left" \left >> >> }
Here's an alternative solution that doesn't use \time at all, but only
sets the relevant properties directly, instead.
\version "2.12.0"
global = {
\key c \major
\override Score.TimeSignature #'style = #'mensural
% This one is used to select the printed time signature:
\set Timing.timeSignatureFraction = #'(3 . 4)
}
right = \relative c'' {
\global
%\time 4/4
% Only change the measure length:
\set Timing.measureLength = #(ly:make-moment 4 4)
a4 g f g
\bar":"
\once \override Score.TimeSignature #'stencil = ##f
%\time 3/1
\set Timing.measureLength = #(ly:make-moment 3 1)
a2 a b c b1 a g2 f1 e2
}
left = \relative c' {
\global
R1 d2 d d a g a c b1 a c2
}
\score {
<<
\new PianoStaff \with {
instrumentName = "Organ"
} <<
\new Staff = "right"\right
\new Staff = "left" \left >> >> }
/Mats
Shane Brandes wrote:
Hello,
I have found a peculiar thing concerning multi measure rests. In trying to use
R1 to center a full rest in a partial bar of a piece the rest disappears when R1
is used as R1*1/4 in order to create the correct duration of the rest.
Below is the relevant snippet.
\version "2.12.0"
global = {
\key c \major
\time 3/4
}
right = \relative c'' {
\global
\override Staff.TimeSignature #'style = #'mensural
\partial 4*1
a4*1/4 g f g
\bar":"
a2*1/4 a b c b1*1/4 a g2*1/4 f1*1/4 e2*1/4
}
left = \relative c' {
\global
\override Staff.TimeSignature #'style = #'mensural
R1*1/4 d2*1/4 d d a g a c b1*1/4 a c2*1/4
}
\score {
<<
\new PianoStaff \with {
instrumentName = "Organ"
} <<
\new Staff = "right"\right
\new Staff = "left" \left >> >> }
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--
=
Mats Bengtsson
Signal Processing
School of Electrical Engineering
Royal Institute of Technology (KTH)
SE-100 44 STOCKHOLM
Sweden
Phone: (+46) 8 790 8463
Fax: (+46) 8 790 7260
Email: mats.bengts...@ee.kth.se
WWW: http://www.s3.kth.se/~mabe
=
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starting with multimeasure rest bug
The following *.ly snippet:
\version "2.5.24"
\score {
\relative c {
\set Score.skipBars = ##t
R1*9
}
}
Produces this console output:
Interpreting music... [1]
Preprocessing graphical objects...
Calculating line breaks...
programming error: Multi_measure_rest::get_rods (): I am not spanned!
continuing, cross fingers
[2]
Calculating page breaks...
Layout output to `test.ps'...
Converting to `test.pdf'...
And there is no multimeasure rest displayed when the score starts with a
multimeasure rest. Subsequent multimueasure rests are fine -- even if
one is added immediatley after the first one. This is with recent CVS
(ChangeLog 1.3560)
-David
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