Thursday, July 6 

Here’s an inside tip for ya: ace bluegrass player and singer Jason Phelps (Jerks of Grass) has been channeling his inner Jerry every Thursday at Gritty McDuff’s (396 Congress St., Portland) at 9 p.m. with Dead tribute act A Band Beyond Description, and it’s free (21+). 772-2739. grittys.com. They’re also playing a Sunday afternoon gig on the patio at Slab (25 Preble St., Portland) on July 23 at 3 p.m. Free (all ages). 245-3088. slabportland.com.