Folks,
the German Wikipedia entry of LilyPond at
https://de.wikipedia.org/wiki/LilyPond
shows a few bars of a Stockhausen piano piece. Unfortunately, it's of
bad quality: it contains input errors (cf. the plain text `pp'), the
typesetting of the score itself, and its conversion to SVG (resp. the
follow-up conversion to PNG). This is not an advertisement for
Lilypond at all IMHO...
The input file (for version 2.12.2!) can be found here
https://de.wikipedia.org/wiki/Datei:Klavierst%C3%BCcke_(Stockhausen)_Nr2-Klavierst%C3%BCck2-Anfang.svg
and a quick search for a scan of the original print gives me
http://www.youtube.com/watch?v=BE2cMxY91rU
I'm quite sure that we can do that *much* better!
Any volunteer? Unfortunately, I don't have time to do that by myself.
Werner