Last we saw Cécile McLorin Salvant, one of the great jazz singers, she held a Jackson Hall audience captive with her majestic song cycle Ogresse. It would be the last performance before the Mondavi Center shut down for a 19-month, pandemic-related pause. Now the singer returns with Ghost Song, a remarkable album born during the pandemic, on which Salvant interprets songs from Kate Bush, Gregory Porter alongside her stunning original compositions. It’s another reminder that Salvant is an artist whose voice and artistry continue to grow with every new step she takes. “People think that I sing love songs, but more and more I’m realizing that I sing about yearning and the imagination that comes from wanting something and not having it,” says Salvant.  “That’s really when we’re at our most creative.”