VirtualMIDISynth - VirtualMIDISynth is a software MIDI synthesizer implemented as a Windows multimedia user driver...
Touch Pianist - Play piano like a pro without playing piano.
FluidSynth - FluidSynth is a real-time software synthesizer based on the SoundFont 2 specifications and has...
Virtual MIDI Piano Keyboard - Virtual MIDI Piano Keyboard is a MIDI events generator and receiver.
TiMidity++ - TiMidity++ is an open source MIDI to WAVE converter and player.
Pianu - Learn to play the piano in your browser.