Qsynth - Qsynth is a simple Qt4 application wrapper for the ...
yoshimi - Yoshimi is a software synthesizer for Linux based on the 2.4.
FluidSynth - FluidSynth is a real-time software synthesizer based on the SoundFont 2 specifications and has...
Zebralette - u-he makes creative software synthesizers and effects.
ZynAddSubFX - ZynAddSubFX is an open source software synthesizer for Linux, Mac OS X and Microsoft Windows.
VirtualMIDISynth - VirtualMIDISynth is a software MIDI synthesizer implemented as a Windows multimedia user driver...