You need to make an end point for the hairpin. In this case you could add some empty zero-duration placeholder at the end of the measure to attach the end of the hairpin, like s1*0\! or <>\! Also, please do minimal examples that can compile to show the problems you’re having, like
\version "2.22.1" { \time 3/4 a2.\<( a2.\>) <>\! } Hope this helps \Leo > 14 sep. 2021 kl. 22:29 skrev Carlos Martinez <car...@newsoundmusicstudio.com>: > > When I am trying to add hairpins to the end > > a2.\<( > a2.\>) > > > It does not show. How can I accomplish it? > > >