It’s a good week to be a deadhead in Richmond. On Thursday, Aug. 17, you can catch the summer tour for the world’s best Grateful Dead tribute act, Dark Star Orchestra, streaming forth the flowering jams at Innsbrook Pavilion (6 p.m.) Tickets for that show run $15 to $69. Then follow up those blissful, hippie vibes at the ballpark the next night, Friday, Aug. 18, with Grateful Dead night at the Diamond featuring free tie-dyed T-shirt giveaways when the Flying Squirrels take on the RubberDucks. Noodle onward, lost sailor. innsbrookafterhours.com.