Well, let me explain :-)
I often use \once \override Voice.Slur #'positions = #'(a . b) to adjust Slur
position, and most of the time, I only need to modify only one of a or b.
I'd like to be able to "catch" the default a or b value and tell Lily not to touch it, so that I could tell Lily something like :
\once \override Voice.Slur #'positions = #'(* . b)
with * = default value, which would mean "whatever you want"
Does anybody know a clever trick for that ?
Best regards !
JMarc
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