It is the last album in the prolific three-decade collaboration of Pat Metheny and Lyle Mays.
The piece is through composed, featuring complex shifts of dynamics and meter, and precise transitions between solo improvisation sections.
Swiss multi-instrumentalist Gregoire Maret is showcased on the harmonica and joined the Group for the album's world tour.
The tour included a performance at the Montreal Jazz Festival, and an official concert recording of the Seoul, South Korea appearance was released on DVD and Blu-Ray.
All tracks are written by Pat Metheny and Lyle MaysAdditional musicians Grammy Awards