SVG instrument names misaligned

[Mike Solomon]

This displays fine as a PDF, but as an SVG the names of the staves appear oddly 
shifted in several browsers.  Any suggestions for how to fix that w/o too much 
kludgery?

Also, is there a way in SVG to use a font whose design is more appropriate for 
the scaled size of lilypond's normal output?  I have a feeling that part of the 
reason this may be off is due to the crimped nature of the font that comes with 
using native SVG fonts.  I would be more than happy if there were an option 
that created a an SVG which turned all of the fonts to which I'm accustomed in 
the postscript version into Bezier paths in the SVG that displayed as beautiful 
lilypond lettering.

Thanks!
Mike

\version "2.13.44"
\paper { left-margin=4\cm }

\score {
  \new StaffGroup
  { <<
    \new Staff = "mordant" { \set Staff.instrumentName = \markup { 
\right-column { "en mordant l'anche" "et soufflant" } } a' a' a' a'  }
    \new Staff = "gemissant" { \set Staff.instrumentName = \markup { 
\right-column { "en poussant des petits cris," "la gorge fermée" } } a' a' a' 
a' }
  >> }
}