Shotcut is a free, open source, cross-platform video editor.
A free multi-track audio editor and recorder
A cross-platform DVD authoring application
An advanced drum machine with pattern-based programming
Audio Tag Editor
A free video editor to cut, filter, and encode projects
Graphical editor software for many Boss and Roland effect & synth unit
EasyABC is an open source ABC editor
Snd is a sound editor
Download album art for complete media library
The X Jack Video Monitor
audio sequencer
Audio Editing Suite
BASH tools and and Debian packages for Linux users and administrators
Multitrack audio editor