> I'm not top posting.
While trying to create a custom crescendo in LilyPond 2.13.59 and 2.12.3, I came
up against what I believe is a bug in DynamicTextSpanner's style override : When
I set 'style to 'hairpin, what is printed out is a straight line, identical to
the result of setting style to 'line, or anything other than dashed-line or
dotted-line for that matter. The code that triggers the bug here is lifted (save
for the change to 'hairpin) straight from Snippets -> Expressive marks ->
Changing text and spanner styles for text dynamics, and though the description
claims that 'hairpin is a valid style, it clearly is not here. Erroneous output
is in red.
\version "2.13.59"
\relative c'' {
\set crescendoText = \markup { \italic { cresc. poco } }
\set crescendoSpanner = #'text
\override DynamicTextSpanner #'style = #'line
a2\< a
a2 a
a2 a
a2 a\mf
\once \override DynamicTextSpanner #'color = #red \override DynamicTextSpanner
#'style = #'hairpin
a2\< a
a2 a
a2 a
a2 a\mf
}
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