csirkefog@ubuntu:~$ apt-cache search rosegarden
lilypond - A program for typesetting sheet music
rosegarden - An integrated MIDI sequencer and musical notation editor
rosegarden2 - An integrated MIDI sequencer and musical notation editor
rosegarden4 - music editor and MIDI/audio sequencer
csirkefog@ubuntu:~$
Az universe tárolókat kell engedélyezni.
Továbbá vedd fel ezt /etc/apt/sources.list -be:
## PENGUIN LIBERATION FRONT (PLF) REPOSITORIES (http://wiki.ubuntu-fr.org/doc/plf)
## Primary
deb http://packages.freecontrib.org/ubuntu/plf/ dapper free non-free
deb-src http://packages.freecontrib.org/ubuntu/plf/ dapper free non-free