Hastemarch

Hastemarch, also known as March, Swift Song, and Swift Shanty, is a recurring ability in the Final Fantasy series. It is used with Sing and increases the Speed of the party, sometimes simply boosting their raw Speed, other times by bestowing Haste status on them.

Final Fantasy IV
Hastemarch is usable by Edward is the DS and iOS releases of the game, and by any party member when they use the Bardsong Augment. Hastemarch casts Haste on the party, and the singer must be at Level 40 or higher to use it.

Final Fantasy IV: The After Years
Hastemarch is usable by Edward at any level, and casts Haste on the target party member(s).

Final Fantasy V
Swift Song is used by the Sing command, learned by the Bard. It increases the Speed of the party. Swift Song can be learned in Castle Surgate, in Xezat's Chambers.

Final Fantasy XI
There are two March songs in the game. Advancing March reduces the party's attack delay and magic recast timers, in effect boosting the speed of their actions, while Victory March grants a greater increase of the same effect. Both are learned by the Bard, and can have their duration and effect enhanced by certain equipment pieces.

Final Fantasy Dimensions
Swift Shanty is the level 14 ability of the Bard class, requiring 400 AP to learn. At the cost of 22 MP, the user will increase the SPD of all allies for the duration of the song.

Theatrhythm Final Fantasy
Hastemarch comes in three levels of power, increasing the party's Agility by 10, 15, or 20, depending on the level. Onion Knight, Locke and Aerith learn all three levels of Hastemarch, while Princess Sarah learns the Lv.2 version only.