How can one or two musicians sound like a full band? The answer is MIDI. It's the abbreviation for "Musical Instrument Digital Interface." It's the electronic "language" that is "spoken" between different instruments and the main device (computer) controlling them.
For millions of people, modern technology seems too far away to garner. This is especially true for those that cannot afford to get a cell phone. For many, this seems like something that is rudimentary, getting a phone.