Font Viewer - Font Viewer is an application which does exactly that - it views fonts!
Aftertouch - Aftertouch – 3D MIDI Controller created and published by Kevin Nelson.
NexusFont - Choose and manage your fonts with Nexus Font.
SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
Font Manager - Simple font management for GTK+ desktop environments
keezy - A colorful soundboard. Play with music.