Presents performance at SFJazz this past January 18, Julian Lage told an anecdote about the pressure he felt to speak entertainingly to the audience while he switched tunings. As he retuned by ear in front of the sell-out crowd, Lage recounted a previous occasion when he’d thought he was dialed into his electronic tuner, only to look and find nothing but a triangle with an exclamation point in its screen. The episode, he
