Pat Metheny hasn't left many corners of improvisational exploration unturned during his 25-year career, and he refers to just about all of them on Trio-Live, culled from live performances by his trio before enthusiastic audiences in the U.S., Europe, and Japan in 1999-2000. Joined by the uncannily intuitive bass-drum pair of Larry Grenadier and Bill Stewart, Metheny digs deep into 13 pieces, reimagining old favorites like "Question and Answer," "Unity Village," "So May It Secretly Begin," "James," and "The Bat" and Methenyizing a pair of lingua franca jazz standards ("Giant Steps" and "All the Things You Are"). We hear him play acoustic guitar on the previously unrecorded "Night Turns into Day." On the open-ended "Counting Texas," in dialogue with Stewart's stomping drumbeats and Grenadier's fluid melodies, he showcases his oud-like custom-made 12-string fretless guitar; on "Into the Dream" the master takes a solo turn that explores the rich harmonics of his sui generis 42-string guitar. A must for Metheny fans, Trio-Live, captures the 46-year-old guitarist at his most expansive and exploratory; it shows how the discrete sonic pathways articulated on his wildly diverse recording projects emanate from a capacious, almost novelistic vision of the possibilities of musical narrative.