Fine Tuned

The world premier of “Avatar” music will be staged today (Saturday) as part of the Golden State Pops Orchestra’s “Great Composers Tribute.” Taking place on Feb. 6 at 8 p.m. at the Warner Grand Theatre, the show features music from “Avatar,” the TV show “Lost” and other popular productions. John Ottman, the composer behind tunes from “The Usual Suspects,” “X2: X-Men United,” “Superman Returns” and “Valkyrie,” will be interviewed on stage at 7:30 p.m.