Extending LilyPond: 1.2.2 LilyPond variables

### 1.2.2 LilyPond variables

LilyPond variables are stored internally in the form of Scheme variables. Thus,

>     twelve = 12

is equivalent to

>     #(define twelve 12)

This means that LilyPond variables are available for use in Scheme expressions. For example, we could use

>     twentyFour = #(* 2 twelve)

which would result in the number 24 being stored in the LilyPond (and Scheme) variable `twentyFour`.

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#### LilyPond — Extending