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Re: programming error: (de)crescendo on items with specified volume


From: Mark Polesky
Subject: Re: programming error: (de)crescendo on items with specified volume
Date: Wed, 12 Nov 2008 00:01:23 -0800 (PST)

Frédéric,

It's the MIDI engine that's complaining. If you
don't need a MIDI file, remove the \midi { } 
block, and the errors will not be generated.

This can happen if you try to crescendo from one
dynamic to the same dynamic or a softer one; or 
if you try to diminuendo from one dynamic to the
same dynamic or a louder one, for example:

%each line here triggers a programming error
g\f\< a b\f c
g\f\< a b\p c
g\p\> a b\p c
g\p\> a b\f c

Another way this can happen (and the more common
way) is if you split a (de)crescendo into 2 parts
without specifying the dynamic in the middle, for
example:

g\p\< a\! b\< c\f
g\f\> a\! b\> c\p

Hope this helps
- Mark







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