San Francisco Symphony conductor Michael Tilson Thomas is one of the most famous conductors in the world. Tonight at 8 at Severance Hall, he leads the San Francisco Symphony as it plays selections by Liszt, Mozart, Samuel Adams and Ravel. The SF Symphony has plenty to celebrate: It’s Thomas’ 70th birthday and he’s led the orchestra for 20 years now. Should be an energetic show. Tickets start at $49. (Niesel)