Organ master Joey DeFrancesco is bringing Healdsburg Jazz’s favorite son, the matchless Billy Hart, on drums, and budding tenor sax star Troy Roberts. For a preview, check out the trio’s tremendous new album, In the Key of the Universe, which also features the legendary Pharoah Sanders. For her set, called “Simply Ella,” violin great Regina Carter taps her recent album, Ella: Accentuate the Positive, featuring funky, loving, thoroughly unique interpretations of material by the First Lady of Song.