Here's what I've found they are:

1) FFVI Decisive Battle (boss theme)
2) FFVII Fighting (battle theme)
3) FFIV Fight 1 (battle theme)
4) FFII Battle Scene 1 (battle theme)
5) FFVI Battle Theme
6) (FFI-VI and FFIX) Victory Fanfare
7) FFX Zanarkand
8) FFX-2 Eternity - Memory of Lightwaves
9) FFVI Tina (Terra's theme)
10) FFVI Edgar and Sabin
11) FFVII Fiddle de Chocobo
12) FFIX Melodies of Life
13) FFI Chaos' Temple (Temple of Fiends present)
14) (FFI and FFIII-IX) Final Fantasy (main/prologue/ending theme)

I hope this list was helpful.