Summary: The Korg R3 Synthesizer maybe a pint-sized keyboard but it is a powerhouse of analog sounds. It makes use of Multiple Modeling Technology or MMT to come up with that analog synthesis sound engine. This is a 37-key keyboard but is easy to use. It boasts of 128 programs that can deliver that crucial synthesizer sounds. These programs are further organized into 16 banks and 8 programs which are organized depending on the sound category.