Trey Anastasio has added two more symphony shows for this September. The Phish guitarist will now team up with the Oregon Symphony at Arlene Schnitzer Concert Hall in Portland on September 9 before joining the Seattle Symphony at Benaroya Hall in Seattle on Septembr 11.

Pre-sale tickets will go on sale on Thursday, May 1 at 10am PST and will be available until 5pm ET on Wednesday, May 7.

As previously reported, Anastasio and the Los Angeles Philharmonic will perform at the Hollywood Bowl in L.A. on September 26. Tickets for that concert are still on sale.