1\version "2.19.21"
2
3\header {
4  texidoc = "Setting the style of a @code{DynamicTextSpanner} to @code{'none}
5to hide the line altogether should also work over line breaks.
6"
7}
8
9\relative {
10  \override DynamicTextSpanner.style = #'none
11  c''2\cresc g,2
12  \break
13  g2 c'2\f
14}
15