There’s a difference between aimless and directionless. One implies a rutted broken-wheeled circle, and the other implies a loose, ambling adventure free of intent or prejudice. Guitarist Steve Kimock’s spacey, expansive jams definitely subscribe to the latter. The thick grooves are especially laid-back as they traverse the jam universe from dubby reggae rings to rocky asteroid fields, streaking Deadheaded folk comets and amber sunrise glow over hazy Traffic. Kimock’s playing often feels like watercolors with slight diaphanous strokes of color tenderly applied, meditatively filling the picture. It’s sit-down music inasmuch as Kimock seems to prefer long fuses to frequent incendiary outbursts. The Pennsylvania-born guitarist’s been making music since moving to San Francisco in the late ’70s. He’s played in a variety of ensembles, most notably psych-rochers Zero, who’ve released 10 albums the last 25 years. He also collaborated with Dead-related projects such as Rat Dog, the Other Ones, and Phil Lesh & Friends. “We’re playing from Maine to Florida,” Kimock says of his spring/summer tour. “Those who come out will be treated to an evening of sonic exploration, and they’ll experience a unique perspective into the inner congruity of some of the nation’s most revered musicians.” Expect a particularly funky undercurrent on stage, thanks to the temporary addition of Bernie Worrell. The redoubtable keyboardist’s been a steady contributor to George Clinton’s outfits (Parliament/Funkadelic) as well as joining the Talking Heads for a long stretch in the ’80s and early ’90s. Other special guests include bassist Andy Hess (Gov’t Mule, the Black Crowes, Joan Osborne) and drummer Wally Ingram (Stockholm Syndrome, Sheryl Crow Band). Wadata plays the Meters faves on the deck at 5 p.m.