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Widespread Panic (music group)

Susan Tedeschi's heavy Sunshine

Susan Tedeschi's heavy Sunshine

Don’t be surprised if Susan Tedeschi slips into a little Mahalia Jackson on Saturday. The spirit may move her, she says.

The Grammy-winning Tedeschi Trucks Band will host its second annual Sunshine Music and Blues Festival on Saturday at Mizner Park Amphitheater in Boca Raton, with a lineup that includes Leon Russell, Hot Tuna, Galactic and Stanley Clarke. Tedeschi and her slide-guitar hero husband Derek Trucks, who go on at 8:30 p.m., will perform a set with heavy representation from their soulful summer release, “Made Up Mind” ("Equal parts Stax and Muscle Shoals without the dilution of either," said Rolling Stone).

The title track is a spirited rejection of bad...