Mattson was named the permanent lead guitarist for Dark Star Orchestra[1] in November of 2009.
A veteran of 30 years on the road, Mattson is a guitar player whose style ranges from rock & roll to blues, bluegrass, country, jazz, folk and psychedelia.
Jeff is also a strong original songwriter and his work is prominently featured on five albums, including several pieces co-written with bandmate Donna Jean.
He is a co-writer of “Leave Me Out of This,” a track on Phil Lesh and Friends Sony CD, "There and Back Again."
Jeff and then Zen Trickster keyboard player, Rob Barraco, played three shows with Phil Lesh and Friends at the Warfield Theater in San Francisco.