1\version "2.19.22"
2
3\header {
4texidoc = "Postfix functions for custom crescendo text spanners.  The spanners
5should start on the first note of the measure.  One has to use -\mycresc,
6otherwise the spanner start will rather be assigned to the next note."
7}
8
9% Two functions for (de)crescendo spanners where you can explicitly give the
10% spanner text.
11mycresc = #(define-music-function (mymarkup) (string?)
12  (make-music 'CrescendoEvent 'span-direction START
13              'span-type 'text 'span-text mymarkup))
14mydecresc = #(define-music-function (mymarkup) (string?)
15  (make-music 'DecrescendoEvent 'span-direction START
16              'span-type 'text 'span-text mymarkup))
17
18\relative {
19  c'4-\mycresc "custom cresc" c4 c4 c4 |
20  c4 c4 c4 c4 |
21  c4-\mydecresc "custom decresc" c4 c4 c4 |
22  c4 c4\! c4 c4
23}
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