the example on http://lilypond.org/examples.html#Customized-Output is
missing:
http://lilypond.org/ly-examples/stockhausen-klavierstueckII.png is not
found.
Hmm, weird. I've renamed it in a recent commit for orthogonality with
other examples. The old name is
http://lilypond.org/ly-examples/Stockhausen_Klavierstueck2.png
and this file is present.
How comes that the HTML code from
http://lilypond.org/examples.html
is sensitive to recent changes in `staging' or `master' without
updating the images? For example, the Schenker graph image is still
the one coming with 2.19.83.
This definitely looks like a bug.