Folks, this plugin is an actual synthesizer, not a sample playback module. I will disagree with Larry in that this IS much more like a hardware synthesizer. This forum is one of the only music generating focused forums where this confusion about what a synthesizer is seems to exist. The list of modules that Larry listed above are not typically referred to as synthesizers. Rather, they are more often called General Midi playback modules, ROMplers, substitutes for keyboard "workstations", etc, with the purpose being primarily sound simulations of the General Midi instrument list. Synthesizers on the other hand have a rather different purpose, to create sounds that perhaps haven't been heard before, using a variety of source oscillators and signal processing to create a sound. Sometimes this might sound like a familiar sound like a piano or trumpet, violin, guitar, etc but with synthesizers more often than not it is not the goal to try to duplicate some acoustic instrument or known electrified instrument. Some hardware allows for both simulated as well as synthesizer sounds, for example my Casio XW-P1 has both a sample based GM capable sound engine but also a mono lead synth sound engine as well as a hardware emulation of the Hammond drawbar organ way of generating sound.