Mechanical Rhythm (機の律動) is a Field Track in Xenoblade Chronicles, composed and arranged by ACE+. It is track 15 of disc 4 from the Xenoblade Original Soundtrack. This music is heard whenever the party engages an enemy in battle in the Mechonis areas of the game (except for Sword Valley): Galahad Fortress, Fallen Arm, Mechonis Field, Central Factory, and Agniratha. Notably, this same theme plays when Junks flies the party into the Central Factory to pursue Egil after the destruction of Agniratha.