"Theme of Tara" is the main theme of Metal Gear and one of the most remixed pieces in the Metal Gear series, next to the "Metal Gear Solid Main Theme." It was originally composed by Iku Mizutani. It plays almost constantly throughout Metal Gear, except during alert phases, boss battles or when in Outer Heaven's lower basement areas. Its name originated with Hideo Kojima, who interpreted the beat of the theme as "ta-rah."