George Demarest earned degrees in trumpet performance and computer science from the Brooklyn College Conservatory of Music, studying trumpet with Raymond Mase of the American Brass Quintet. He has performed with the Cincinnati Ballet, Carmen McRea, the Santa Cruz Symphony, Ensemble Monterey, New Music Works and many others.

He regularly records and performs in the San Francisco Bay Area as a freelance trumpeter, vocalist, wind synth player, keyboardist, live looper and electronic musician. He featured in the inaugural Y2K festival as well as Y2k festivals in 2003, 2004, 2009, 2010, 2011, 2012, 2014, 2016, 2017 and 2018.