Fermata over barline moving to next liine

[Richard Shann]

I have a score with a fermata on a barline. If the barline occurs at a
line break it moves itself on to the next line over the clef there.
Digging in the manual I found I can stop it moving to position itself
over the clef on the following line with this:

\once \override Score.RehearsalMark #'break-visibility = #end-of-line-visible 
\mark \markup { \musicglyph #"scripts.ufermata" }

however, the fermata then vanishes if further changes result in the
fermata not being at a line break.

How can I position a fermata over a barline regardless of whether that
barline is at the end of a line or not?


I have found things like this:
        \override Score.RehearsalMark #'break-align-symbols = #'(time-signature)

but guessing at the name and trying
\override Score.RehearsalMark #'break-align-symbols = #'(barline)
didn't stop the fermata moving to the next line.

Anyone got a solution for this?

Richard Shann