Dan Greenberg Design

Front View of a Duality Guitar - Looks Just Like a Standard Epiphone Les Paul Guitar

Flipping the Duality Guitar on a Custom Strap System

The Strap System Ensures that the Guitar Maintains its Playing Height when Flipped

Back View of a Duality Guitar with an Integrated Korg nanoKEY MIDI Keyboard

Playing the Duality Guitar

Chad Stokes of Dispatch and State Radio Playing a Duality Bass

MIDI Foot Pedal to Control Keyboard Volume and Sounds

First Prototype of the Duality Guitar

Design Patent USD549766 for a Combined Stringed Instrument and Keyboard

Duality Guitars

How can you play the guitar and keyboard at the same time?

In 8th grade, I saw bands like Rush switch between the guitar and keyboard mid-song during shows. The guitarist had to stay still and awkwardly reach around his guitar to play keyboard parts.

To solve this problem, I invented and prototyped a new instrument called the Duality Guitar. I later researched, applied for, and received US Design Patent USD549766 for my design.

Later in high school, I developed a website www.DualityGuitars.com, created a business and marketing plan, and sourced parts and machines to assemble new Duality Guitars.