This is only an addon to the Ambience mod. Go there for the actual mod and then come back here to get this music pack. If for some reason you stumbled here not knowing what the Ambience mod does, it allows you to add custom music for your Minecraft game. For example the biome music, boss music, etc.
This pack contains soundtrack from a large variety of Final Fantasy games. Primarily from Final Fantasy I & II Origins, VII, VIII, IX, X, X-2, and XI. There's a track for just about every event in Minecraft, including boss music for the Wither and the Ender Dragon.
Here's a list of the tracks I've currently added to this pack and their corresponding event:
MainMenu = 01_-_Eternity_Memory_of_Lightwaves
Boss = 08_-_Battle_1,10_-_Fighting,19_-_Battle_Scene
Underground = 13_-_Underwater_Temple
DeepUnderground = 21_-_Red_XIIIs_Theme
Village = 10_-_Town,09_-_Town
Underwater = 08_-_Chaos_Temple
Minecart = 14_-_Brass_de_Chocobo_
Boat = 12_-_Ship
Horse = 02-08_-_Aloha_de_Chocobo
Pig = 11_-_Mods_de_Chocobo_(FF_VIII)
Night = 24_-_Ruined_Castle
Rain = 03-03_-_Fossil_Roo
Dying = 11_-_The_Loser
Fishing = 14_-_Breezy
PumpkinHead = 04-11_-_The_Evil_Mists_Rebirth
Generic = 04_-_The_Prelude
VillageNight = 15_-_Traveling_Company,10_-_Village_Of_Dali
Credits = 10_-_The_Oath
BossWither = 29_-_The_Final_Battle
BossDragon = 07_-_The_Legendary_Beast
Sunflower+Plains = 06_-_Revivification
Flower+Forest = 06_-_Revivification
Roofed+Forest = 13_-_Rydia_(FF_IV_Celtic_Moon)
Deep+Ocean = 14_-_Underwater_Ruins
Spooky = 11_-_In_the_Gloomy_Darkness
Dead = 04_-_Fog_Sea
Lush = 14_-_Sarutabaruta
Nether = 06_-_Find_Your_Way
End = 05_-_Compression_of_Time
Mushroom = 11_-_Rolanberry_Fields
Magical = 07_-_Danger_In_The_Forest
River = 02-14_-_A_Face_Forgotten
Mesa = 03-04_-_Mountain_Pass__Conde_Petie
Forest = 02-11_-_At_the_South_Gate_Border
Plains = 10_-_Village_Of_Dali
Mountain = 01_-_Cosmo_Canyon
Hills = 15_-_Traveling_Company
Swamp = 04-14_-_Crystal_World
Sandy = 38_-_Mediterranean
Snowy = 14_-_The_Salt_Flats
Wasteland = 08_-_Ominous
Beach = 16_-_Costa_Del_Sol
I will say that these tracks aren't properly looped so there's that, but hopefully it won't be too jarring.