Rosegarden is a professional audio and MIDI sequencer, score editor, and general-purpose music composition and editing environment.
Rosegarden is an easy-to-learn, attractive application that runs on Linux, ideal for composers, musicians, music students, and small studio or home recording environments.
Rosegarden does not provide a built-in software synthesizer, so it requires a hardware MIDI synthesizer, a soft synthesizer such as FluidSynth or TiMidity++, or a synthesizer plugin in order to make any sound from MIDI compositions. Recent versions of Rosegarden support the DSSI software synthesizer plugin interface, and can use some Windows VST plugins through an adapter.