Keegan moved from the San Francisco Bay Area in 2003 to pursue a Bachelors degree at the University of Southern California in Los Angeles. He continued his studies at USC and received a Master of Music degree in 2009, and completed his Doctorate of Musical Arts in May of 2012.
Keegan is an active performer throughout the Los Angeles area and enjoys working as both leader and sideman. He is currently a member of a swing band called the Hi-Fi Honeydrops, which is comprised of current and former students from USC.
Keegan gives private guitar instruction at Opus Music and teaches at the College of the Desert, Whittier College and Mt. Sierra College.