Hello! I think it is a Lilypond bug but I let you judge ... No matter the version of Lilypond from "2.18.2" to "2.21.0" No matter the version of Frescobaldi from "2.18" to "3.1.1" On Windows 10 64 Thank you
\version "2.20.0" title = "test" \book { \bookOutputName \title \paper { } \header { title = \title } \score { \relative { c''1 } \layout {} \midi {} } } <http://lilypond.1069038.n5.nabble.com/file/t5463/BookOutputName_with_variable.png> -- Sent from: http://lilypond.1069038.n5.nabble.com/Bugs-f58488.html _______________________________________________ bug-lilypond mailing list bug-lilypond@gnu.org https://lists.gnu.org/mailman/listinfo/bug-lilypond