Hello David,
I would write #(shape-slur offsets) here: there is no need for an
immediate Scheme expression here (the point of $ over # is that the
syntactical function of the $ expression is determined by its expression
type, but here the syntactical function needed is "Scheme" anyway).
thank you!
Variables in musicfunctions now are available by there name without
the preceding $.
The $-sign now introduces a scheme-expression and returns the result
directly ... now here should be more explanation, that I am not able
to put in words right now ;-)
$some-expression is equivalent to \name if you had written
name = #some-expression
some times earlier where an assignment is allowed. Actually, whenever
name is a valid LilyPond identifier name as well as a valid Scheme
identifier name, $name and \name are perfectly equivalent.
Cheers, Jan-Peter
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