Virtual MIDI Piano Keyboard - Virtual MIDI Piano Keyboard is a MIDI events generator and receiver.
EveryonePiano - Everyone Piano is the best free computer keyboard piano software, which supports downloading 3 types of music score formats like stave, right and left hand numbered musical notation and EOP file.
FluidSynth - FluidSynth is a real-time software synthesizer based on the SoundFont 2 specifications and has...
OmniMIDI - A software MIDI synthesizer for professional use.
Repetito - Repetito: the multichannel looper software for live performance on the PC.
TiMidity++ - TiMidity++ is an open source MIDI to WAVE converter and player.