As Neel started trying to piece the show together for his class project—part of Portland State University's Art and Social Practice Master of Fine Arts program—the only things he could confirm were the names of the openers, the presence of go-go dancers, the lack of merchandise and that the Dead played last. His theory of what actually happened that night comes from playbills, archival research and first-hand accounts. This week, at the Portland Art Museum, the former site of the Masonic Temple, Neel will try to recreate not just the sounds but the sights of the gig, with local tribute act the Garcia Birthday Band taking the headlining slot.