After the death of Ronnie Montrose on 3 March 2012, the original members of Gamma (plus Marc Bonilla on guitar) performed to a sell out memorial concert in San Francisco, California. It was here that former Montrose manager/promoter Jim Douglas of Primetime Entertainment suggested that Pattison form a new band. Gamma was reformed with Pattison on vocals, Dan Buch (Butch) on drums, Van Spragins on bass, Tommy Merry on guitar and Brad Barth on keyboards. Notably Gamma performed with Deep Purple in Saratoga, California in the summer of 2014 and with Boston in Lincoln, California in the summer of 2016.
