raise markup

[bobr...@centrum.is]

I've created a markup, simplified to 'X' in my example, and I would like to 
move it up partway into the staff.  I can move it down with a negative number 
but it won't move higher than '0' in \translate.  There must be a way to do 
this.

-David

%%%%%
\version "2.18.2"

\score {
  \relative {
    \relative c' {
      R1_\markup{ \translate #'(0 . 7 ) "X" }
    }
  }
}
%%%%%