APRIL 10 TO MAY 15 “A poet walks into a bar”—it’s a line that might open a hackneyed joke, but serves far better as the premise of Jacques Offenbach’s The Tales of Hoffman, a virtuosic ode to Gothic-Romantic writer E.T.A. Hoffman. Offenbachs’s final, incomplete work is considered one of his most famous, a rumination on lost loves, times past, and the stranglehold of an artist’s creative muse. The Canadian Opera Company production of this brooding, passionate work is not to be missed. Four Seasons Centre for the Performing Arts, $45 to $318; call 416-363-8231 or visit here for showtimes and tickets.