The Jerry Garcia Symphonic Celebration featuring Warren Haynes has added two new dates. Haynes will join the Pittsburgh Symphony Orchestra on June 25 at the The Mann Center for Performing Arts in Philadelphia before heading to Vienna, VA to join the National Symphony Orchestra in Wolf Trap Park for the Performing Arts on June 26. Pre-sale tickets to the Philadelphia concert go on sale February 28, while general admission tickets will be available on March 7. Pre-sale tickets to the Vienna, VA concert will be available on March 13, with general on-sale beginning on March 16.

As previously reported, Haynes will honor Garcia with the Boston Pops on June 22 and he will be commemorate Garcia’s birthday with the San Francisco Symphony on August 1 and 2. Haynes, of course, has played with the Phil Lesh Quintet, and the guitarist also toured with The Dead, which included all four of the core surviving members of the Grateful Dead.