Well, LilyPond has the same problem as a performer would. If you're
crescendoing, at what dynamic are you starting from?
--
Phil Holmes
----- Original Message -----
From: Knute Snortum
To: lilypond-user@gnu.org
Sent: Friday, May 16, 2014 3:21 PM
Subject: MIDI dynamics parsing error
Short Description: I get an error from LilyPond that it can't figure out the
MIDI volume to start a crescendo with in some situations.
Details: The error message is...
(De)crescendo with unspecified starting volume in MIDI.
{ bf4 %{ \mf %}
\< a16 ( \sf gf' f ef ) bf4 %{ \mf %} \< a16 ( \sf gf'
f ef ) }
programming error: Impossible or ambiguous (de)crescendo in MIDI.
continuing, cross fingers
The source code is...
\version "2.18.2"
\language "english"
upper = \relative c'''' {
| gf16-. \f ef-. df-. cf-. bf ( \sf df cf af )
gf-. \sf ef-. df-. cf-. bf ( \sf df cf af )
|
<<
{ bf4 %{ \mf %} \< a16 ( \sf gf' f ef ) bf4 %{ \mf %} \< a16 ( \sf gf' f
ef ) }
\\
{ <af, f>16 q q q a4 <af f>16 q q q a4 }
>>
}
\score {
\new Staff = "up" {
\clef treble
\upper
}
\layout {
}
\midi {
\tempo 4 = 120
}
}
If you uncomment the \mf in line nine, the problem goes away. At first I
thought this was because of the two voices, but when I compile the \relative
part by itself, that is, no \score section, there is no warning.
I'm assuming this is a bug in LilyPond and adding the \mf dynamic mark is a
workaround. If not, please show me the correct way to do this.
Since Mussorgsky didn't write the \mf, I want to hide it, but \hide Dynamics
doesn't seem to work. How would I do this, or is there a better way around
this problem?
Knute Snortum
(via Gmail)
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