This is my list of interesting-looking packages in Debian that i haven't had a chance to look at yet:

• songwrite - guitar tab editor & player
• lilypond - music typsetting
• vlc - media client
• jack-rack - sound processing
• luma - GUI for accessing and managing LDAP database
• blender - 3D studio
• inkscape - vector drawing
• ldap-account-manager - webfrontend for managing Unix and Samba accounts in an LDAP directory
• rosegarden4
• muse - Qt-based midi/audio sequencer
• dlint - Checks DNS zone information using nameserver lookups
• dvdauthor - DVD creator
• gtkguitune - guitar tuner
• hydrogen - drum machine