Stochas sequencer

Create, play and print beautiful sheet music

Advanced Gtk+ Sequencer

Digital Audio Workstation for prototyping

Perform live DJ mixes

MIDI Sequencer and Notation Editor with Audio Support

FamiStudio NES Music Editor

Modern music production and performance

An Audio/MIDI multi-track sequencer

Digital Audio Workstation

Helio, free and cross-platform lightweight music sequencer

Fast Tracker II inspired music tracker

Portable Impulse Tracker clone