music stream exporter

[Kim Shrier]

I was reading Erik Sandberg’s master’s thesis,
http://lilypond.org/website/pdf/thesis-erik-sandberg.pdf
and I am curious if the music stream exporter still exists
and is operational.  A quick look through the sources
didn’t reveal anything to me but the existence of the
Dispatcher and  and Stream_event classes makes me
think that his modifications to Lilypond were integrated.

Any information about this would be appreciated.

Thanks,
Kim