(crescendoSpanner ,symbol? "Type of spanner to be used for crescendi.
One of: @samp{hairpin}, @samp{line}, @samp{dashed-line},
@samp{dotted-line}. If unset, hairpin type is used.")
(crescendoSpanner ,symbol? "Type of spanner to be used for crescendi.
One of: @samp{hairpin}, @samp{line}, @samp{dashed-line},
@samp{dotted-line}. If unset, hairpin type is used.")