+ c1
+@end lilypond
+
+@item
+clave de Do, mensural negra
+@tab
+@code{blackmensural-c1}, @code{blackmensural-c2},@*
+@code{blackmensural-c3}, @code{blackmensural-c4},@*
+@code{blackmensural-c5}
+@tab
+@lilypond[relative=1,notime]
+ \clef "blackmensural-c2"
+ \override NoteHead.style = #'mensural
+ c1