9 Theory is the solo project of eclectic producer, singer/songwriter, and recording/mixing engineer, Gabe Lehner, who has been passionately focused on creating music for 20 years.  With a love for learning guitar and writing songs that slowly evolved into an obsession with producing, recording, and making beats, Gabe has come into his own after numerous bands and musical projects as a renowned producer with a knack for effectively blending different genres of electronic, indie rock, and hip-hop into an original, unique sound.  This unique style of head-bobbing genre-blending has also led to a number of impressive remixes for various artists including Jason Mraz, Emancipator, and Zion I.  He has also come into his own as an experienced and charismatic performer playing hundreds of live shows and performing at music festivals such as Coachella, Lightning In A Bottle, Camp Bisco, and Electric Forest, and opening for artists including Thievery Corporation, Bonobo, STS9, Beats Antique, and Emancipator.

The culmination of Gabe's 20-year journey has led to the birth of his first solo project, 9 Theory, blending genres into a beat-heavy electronic sound with notable flavors of hip-hop and indie rock that has been compared to acts like Gorillaz, Radiohead, Postal Service, and DJ Krush. Although 9 Theory is based around Gabe's own production and songwriting, it also involves numerous collaborations and featured guests, including female vocalists and MC’s both on the recorded music and in the live show when possible.