I mentioned on this list a while ago that I was trying to get lilypond
into Fedora Extras. The first packages were released yesterday and they
should now be installable using "yum install lilypond". There is also a
lilypond-doc package available with the HTML docs. Right now these are
only available on Fedora 5 and newer. I have no intentions to support
Fedora 4 because it used an older version of ghostscript, and that would
mean I could only do the 2.6 releases of lilypond. If you're still using
FC4, using the GUB installer is your best option. It should also be
noted that FC5 only has ghostscript 8.15, and it appears that this may
also be the case for FC6. It has been patched it so it doesn't have the
large PDF issue, but it still crashes when you try to build the
documentation, so clearly there still a few cases where the Fedora
packages will not work and you may need the GUB installer.