scores in columns - vertical alignment

[Marek Klein]

Hi all,
how can I get the staff-lines vertically aligned?

\version "2.13.40"
\layout { line-width = 6.2\cm ragged-right = ##f }
\markup \fill-line {
  \column{
        \score {
            \new Staff { c''' }
            \layout { }
        }
    }
  \column{ 
        \score {
            \new Staff { a }
            \layout { }
        }
    }
}


Marek
--
Marek Klein
http://gregoriana.sk

align.preview.png
Description: PNG image