ps. actually, two more things
1. looking at the whole score, perhaps what i really would like is a way to stop the marks near the staff moving around, perhaps by setting a minimum distance they can approach, while allowing very distant marks to still float, ie. the last mark in
\version "2.18.2"
\relative c'' {
\mark \markup \rounded-box "x" c1
\mark \markup \rounded-box "x" g'1
\mark \markup \rounded-box "x" a,1
\mark \markup \rounded-box "x" c''1
}
2. i can very easily add an annotation to each mark, if that the saner way to do this
thanks again,
rd