Hi, I'm writing a composition with two unmeasured staffs and I want to draw a vertical dashed line that indicates when the notes sound together. I've tried something like that:
\version "2.12.1"
\relative c' { << { c_\markup { \draw-line #'(0 . 9) } } { a } >> }
but as you can see there are some problems: - the line doesn't draw itself at the middle of the notehead
- the botton staff moves itself lower so the line does not colide. (I want it do colide!) - I don't know how to draw a dashed line with the \draw-line command ;)
Is there a way to tweak this, or maybe is better to use another code?