Already a figure in New York’s Greenwich Village folk music scene in the late ’70s and early ’80s, stirring guitarist and singer Lucy Kaplansky received a PhD in clinical psychology in 1983–while performing as a duo with Shawn Colvin, no less. She spent a decade focused on her work, opening a private practice and working in NYC hospitals, then in the early ’90s delighted fans when she returned to her musical roots. Since then, she has excelled as a solo performer, and her absorbing voice is matched by the lyricism of a songwriter with intimate knowledge of the human condition. This week, Lucy Kaplansky performs with opener Nina Gerber on Friday, Dec. 5, at the Occidental Center for the Arts, 3850 Doris Murphy Court, Occidental. 7pm. $25-$27. 707.542.7143.