A song used in aeon battles in FFX. It has a breathless quality that does not relent as the wondrous tune and lavish strength pour down upon the player...Theatrhythm Final Fantasy description
"A Contest Of Aeons" (召喚獣バトル, Shōkanjū Batoru?, lit. Summoned Beast Battle) or "A Contest of Aeons", is the boss theme that plays during the final battle sequence against aeons in Final Fantasy X. It was composed and arranged by Junya Nakano.
The theme begins with the melody of the "Hymn of the Fayth", then an original part is led by the harp. The final section contains the motive of "Enemy Attack", the generic boss theme by the same composer. It is the 17th track on disc 4 of the original soundtrack.
"「A Contest Of Aeons」 from FINAL FANTASY X - arrange" is an arrangement by Takeharu Ishimoto appears as the 42nd track of disc 1 in the original soundtrack. It acts as the final boss theme for the duel between Yuna and the Emperor.
The arranged track from Dissidia 012 Final Fantasy and the original PlayStation 2 version can be bought from the shop for 3,600 gil.
"A Contest of Aeons" is a Battle Music Sequence and is available in the base game.
"A Contest of Aeons (FFX, FFRK Ver. arrange)" is an arrangement by Kensuke Inage which plays in the game, with the chorus provided by Mari Yoshida. It is track 2 of disc 2 on the Final Fantasy Record Keeper Original Soundtrack Vol.2.
"A Contest of Aeons FFRK Ver. arrange from FFX Ver.2" is version 2, arranged by Yoshinori Nakamura and performed by Yusuke Higa and Taeko Sone. It is track 18 of disc 1 on the Final Fantasy Record Keeper Original Soundtrack Vol.3.
"A Contest of Aeons FFX Ver. 3, FFRK Ver. arrange" is version 3, arranged by Yoshitaka Suzuki. It is track 12 of disc 1 on the Final Fantasy Record Keeper Original Soundtrack Vol.4.
"Battle with Alexander" was remastered for Chocobo's Mystery Dungeon Every Buddy!. It is track 14 on the Chocobo's Mystery Dungeon Every Buddy! Original Soundtrack.
An arrangement of "A Contest Of Aeons" is a theme. It is very similar to its original version, but its development was remixed.