The spirit of the Grateful Dead is a joyous and storied tale. Here in Northeast Ohio, a community of tributes -- whole bands and one-off shows -- keep the Dead’s sonic ethos alive and buzzing. Into the Blue, which came together through an impromptu 11 a.m. gig at Nelson Ledges one year, is among the best. They don’t play too often, so their shows carry a certain special aura, and tonight’s promises more wonderful music. Anyone interesting in hearing — and seeing — great music flow from the stage should check out what these guys are doing. Fellow musicians and artists will glean inspiration. And what of the Dead’s dynamic career arc? “We kinda mix and match [musical styles],” guitarist Dan Shramo told Scene last year. “And we'll even do that in the middle of jams. So here we are in 1990s territory, and then we drift off into the 1970s.” How about a nice Scarlet/Fire tonight? (Sandy)